(3x+21)+(4x+16)=180

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Solution for (3x+21)+(4x+16)=180 equation: 



(3x+21)+(4x+16)=180

We move all terms to the left:

(3x+21)+(4x+16)-(180)=0

We get rid of parentheses

3x+4x+21+16-180=0

We add all the numbers together, and all the variables

7x-143=0

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

7x=143

x=143/7

x=20+3/7

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