15x-7+8x+21=180

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Solution for 15x-7+8x+21=180 equation: 



15x-7+8x+21=180

We move all terms to the left:

15x-7+8x+21-(180)=0

We add all the numbers together, and all the variables

23x-166=0

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

23x=166

x=166/23

x=7+5/23

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