horserider142001 horserider142001

14-01-2016
Mathematics

contestada

what is 4x + 4=9x-36

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faithgc22 faithgc22

14-01-2016

4x + 4 = 9x - 36
+36 +36
______________
4x + 40 = 9x
-4x -4x
___________
40 = 5x
--- ----
5 5
________
8 = x
x = 8

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14-01-2016

4x + 4 = 9x - 36 ( - 4 each side)

4x = 9x - 36 - 4 ( - 9x each side)

4x - 9x = - 40

(4 - 9)x = - 40

- 5x = - 40 (divide -5 from each side)

x = -40 / -5

x = 8
answer

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