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What is the solution to the following system of equations?
{y=−3x−7
{x+2y=11
A. (1,9)
B. ( 8,-5)
C. (-5,8)
D. (9,1)
You can use substitution Plug in -3x - 7 for y in second equation x + 2(-3x - 7) = 11 x - 6x - 14 = 11 -5x = 25, x = -5 Plug plug -5 for x in first equation Y = -3(-5) - 7 Y = 15-7, y = 8
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