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Solving Linear Equations

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MathematicsAlgebra|Ages 11—14|ID: mt_QhFEDyIwSO

Use algebraic methods to solve linear equations in one variable, including equations that require rearrangement, expanding brackets, and collecting terms on both sides; solve equations with rational number coefficients

Mastery Evidence

  • Solve one-step and two-step linear equations in one variable
  • Solve equations requiring expansion of brackets and collection of like terms
  • Solve equations with the unknown on both sides and with fractional or negative coefficients

Assessment Prompt

“If [child] is given an equation like 3x + 7 = 22, can they work through the steps to find the value of x?”

Curriculum Standards7 alignments

6.EE.5Common Core State Standards for Mathematics
Understand Solving Equations and Inequalities

Understand solving an equation or inequality as a process of answering a question: which values from a specified set, if any, make the equation or inequality true? Use substitution to determine whether a given number in a specified set makes an equation or inequality true.

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6.EE.7Common Core State Standards for Mathematics
Solve Real-World and Mathematical Problems

Solve real-world and mathematical problems by writing and solving equations of the form x + p = q and px = q for cases in which p, q and x are all nonnegative rational numbers.

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7.EE.4Common Core State Standards for Mathematics
Use variables to represent quantities and construct simple equations and inequalities

Use variables to represent quantities in a real-world or mathematical problem, and construct simple equations and inequalities to solve problems by reasoning about the quantities.

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7.EE.4aCommon Core State Standards for Mathematics
Solve word problems leading to equations of the form px + q = r and p(x + q) = r

Solve word problems leading to equations of the form px + q = r and p(x + q) = r, where p, q, and r are specific rational numbers. Solve equations of these forms fluently. Compare an algebraic solution to an arithmetic solution, identifying the sequence of the operations used in each approach. For example, the perimeter of a rectangle is 54 cm. Its length is 6 cm. What is its width?

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8.EE.7aCommon Core State Standards for Mathematics
Linear equations with one, infinite, or no solutions

Solve linear equations in one variable. Give examples of linear equations in one variable with one solution, infinitely many solutions, or no solutions. Show which of these possibilities is the case by successively transforming the given equation into simpler forms, until an equivalent equation of the form x = a, a = a, or a = b results (where a and b are different numbers).

EE
8.EE.7bCommon Core State Standards for Mathematics
Solving linear equations with rational coefficients

Solve linear equations in one variable. Solve linear equations with rational number coefficients, including equations whose solutions require expanding expressions using the distributive property and collecting like terms.

EE
KS3.Maths.Alg.7The national curriculum in England
Solve Linear Equations

use algebraic methods to solve linear equations in 1 variable (including all forms that require rearrangement)

Mathematics · Key Stage 3

Prerequisites4

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