Problem preview

MF.EQ.7 Standard MF-034-A07-V03

Solve multi-step linear equations, including equations requiring simplification first.

Match a context to the right multi-step equation

Problem

A gym charges $\$12~\text{once}$ plus $\$15~\text{per}~\text{month}$, then applies a $\$9$ discount, for $\$78$ paid. Which complete response correctly models the situation?

A. $12~+~15x~-~9~=~78$
B. $12~+~15(x~-~9)~=~78$
C. $12~+~15x~+~9~=~78$

Answer choices

Choose your path.

Preview only

B; x = 13.4 months

A; x = 5 months

C; x = 3.8 months

A; x = 3.8 months

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Curriculum context

Course: Math Foundations
Standard: MF.EQ.7
Category: Pre-Algebra
Domain: Equations
Objective: Solve multi-step linear equations, including equations requiring simplification first.
Problem type: Match a context to the right multi-step equation