The Simplification of the expression -5(x + 2y) + 15(x + 2y) when x = 7 and y = -7 is -70
-5(x + 2y) + 15(x + 2y)
= -5(x + 2y) + 15(x + 2y)
= - 5x - 10y + 15x + 30y
= -5(7) - 10(-7) + 15(7) + 30(-7)
= -35 + 70 + 105 - 210
-5(x + 2y) + 15(x + 2y) = -70
Therefore, the Simplification of the expression -5(x + 2y) + 15(x + 2y) when x = 7 and y = -7 is -70
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