21
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Solving Linear Systems by Elimination

Question 21 • OK-Algebra II A

If you multiply the first equation by 6, the following system is the result.3x + 9y = -42-3x + 2y = -2To solve this system by elimination, the equations.

Answer
A
add
B
subtract
C
multiply
D
substitute

Explanation

Add the equations: the x-terms, 3x and −3x, cancel, leaving 11y = −44. So the equations should be added to eliminate x; the correct choice is add.

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