Question

Subtract the second equation from the first.

6x+5y=16
(6x+2y=10)
-
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A. 12x = 26
B. 3y = 6
C. –12x = 6
D. 7y = 26

Answer 1

B. 3y = 6

Explanation:

(6x +5y) -(6x +2y) = (16) -(10)

6x +5y -6x -2y = 6 . . . eliminate parentheses

(6-6)x +(5-2)y = 6 . . . . add like terms

3y = 6 . . . . . . . . . . . simplify