180=7x+3x+90

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Solution for 180=7x+3x+90 equation:



180=7x+3x+90
We move all terms to the left:
180-(7x+3x+90)=0
We add all the numbers together, and all the variables
-(10x+90)+180=0
We get rid of parentheses
-10x-90+180=0
We add all the numbers together, and all the variables
-10x+90=0
We move all terms containing x to the left, all other terms to the right
-10x=-90
x=-90/-10
x=+9

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