SOLUTION: -16 + 7x -x (-5) + 2x if x = 6
8x -5(x+6) - 8 if x = 20
15 - 2 (7 -x) + 4x if x = -9
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Question 669594: -16 + 7x -x (-5) + 2x if x = 6
8x -5(x+6) - 8 if x = 20
15 - 2 (7 -x) + 4x if x = -9
Answer by ReadingBoosters(3246) (Show Source): You can put this solution on YOUR website!
Plug in the x value into the expression
...
-16 + 7x -x(-5) + 2x
is
-16 + 7(6) - 6(-5) + 2(6)
is
-16 + 42 + 30 + 12
...
8x - 5(x+6) - 8
is
8(20) - 5(20+6) - 8
160 - 130 - 8
...
15 - 2(7-x) + 4x
is
15 - 2(7--9) + 4(-9)
15 - 32 - 36
.....................
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