sandra56 sandra56

18-09-2017
Mathematics

contestada

-7x = -8x +20 what's the value for x

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supdiggity supdiggity

18-09-2017

x=20, Simply add 8x to both sides of the equation

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garciaximena412 garciaximena412

18-09-2017

add 8 on both sides:
-8+8=0
-7+8=1
and the final answer is:
1x=20 or x=20

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