Problem preview
MF.EQ.5 Standard MF-032-A09-V01

Solve one-step equations and interpret the solution in context.

Judge a solution check

Problem

Mia claims \(x~=~5\) satisfies \(x~-~2~=~1\). Substitute her value to evaluate the claim, then solve the equation. Report valid or invalid followed by the actual solution.

Big Picture

What this problem is really about

Evaluate the claim by replacing x with Mia's stated value in the original equation and comparing the two sides numerically. If they differ, the claim is invalid regardless of how plausible the value looks. Then solve the untouched equation with an inverse operation and verify the new value by substitution.

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Four variants of this problem type
Curriculum context
Standard
MF.EQ.5
Category
Pre-Algebra
Domain
Equations
Objective
Solve one-step equations and interpret the solution in context.
Problem type
Judge a solution check