-9=7x+40

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Solution for -9=7x+40 equation:



-9=7x+40
We move all terms to the left:
-9-(7x+40)=0
We get rid of parentheses
-7x-40-9=0
We add all the numbers together, and all the variables
-7x-49=0
We move all terms containing x to the left, all other terms to the right
-7x=49
x=49/-7
x=-7

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