3x+-90=-243

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Solution for 3x+-90=-243 equation: 



3x+-90=-243

We move all terms to the left:

3x+-90-(-243)=0

We add all the numbers together, and all the variables

3x+153=0

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

3x=-153

x=-153/3

x=-51

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