40=8x+7=9x=16

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Solution for 40=8x+7=9x=16 equation: 



40=8x+7=9x=16

We move all terms to the left:

40-(8x+7)=0

We get rid of parentheses

-8x-7+40=0

We add all the numbers together, and all the variables

-8x+33=0

We move all terms containing x to the left, all other terms to the right

-8x=-33

x=-33/-8

x=4+1/8

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