2
lesson pretestMultiple Choice

Pretest

Question 2 • CMS 2026-2027 NC Math 1 CREDIT RECOVERY

Which statement correctly explains how Kasi could find a solution to the following system of linear equations using elimination? negative 4 g minus 15 h is equal to negative 17 negative g plus 5 h is equal to 13

Answer
A
She can multiply the bottom equation by negative 4 and then add the equations to solve for h .
B
She can add 17 to both sides of both equations to set negative 4 g minus 15 h equal to zero.
C
She can subtract 13 from both sides of both equations to set negative g plus 5 h equal to zero.
D
She can multiply the bottom equation by 4 and then add the equations to solve for h .

Explanation

The first equation has a coefficient of −4 for g, while the second has a coefficient of −1. Multiplying the second equation by −4 changes it to 4g − 20h = −52; adding this to −4g − 15h = −17 cancels the g terms, leaving an equation in h. So Kasi can solve for h using the method described in choice C.

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