3x+4+8x+4=180-40

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Solution for 3x+4+8x+4=180-40 equation: 



3x+4+8x+4=180-40

We move all terms to the left:

3x+4+8x+4-(180-40)=0

We add all the numbers together, and all the variables

3x+8x+4+4-140=0

We add all the numbers together, and all the variables

11x-132=0

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

11x=132

x=132/11

x=12

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