21x+4+7x+8=180

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Solution for 21x+4+7x+8=180 equation: 



21x+4+7x+8=180

We move all terms to the left:

21x+4+7x+8-(180)=0

We add all the numbers together, and all the variables

28x-168=0

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

28x=168

x=168/28

x=6

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