120+(7x)+90+(6x)+(5x-4)+(8x-6)+120=720

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Solution for 120+(7x)+90+(6x)+(5x-4)+(8x-6)+120=720 equation: 



120+(7x)+90+(6x)+(5x-4)+(8x-6)+120=720

We move all terms to the left:

120+(7x)+90+(6x)+(5x-4)+(8x-6)+120-(720)=0

We add all the numbers together, and all the variables

13x+(5x-4)+(8x-6)-390=0

We get rid of parentheses

13x+5x+8x-4-6-390=0

We add all the numbers together, and all the variables

26x-400=0

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

26x=400

x=400/26

x=15+5/13

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