7x+x+18=15x-3

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Solution for 7x+x+18=15x-3 equation:



7x+x+18=15x-3
We move all terms to the left:
7x+x+18-(15x-3)=0
We add all the numbers together, and all the variables
8x-(15x-3)+18=0
We get rid of parentheses
8x-15x+3+18=0
We add all the numbers together, and all the variables
-7x+21=0
We move all terms containing x to the left, all other terms to the right
-7x=-21
x=-21/-7
x=+3

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