3x+5x=-42

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Solution for 3x+5x=-42 equation: 



3x+5x=-42

We move all terms to the left:

3x+5x-(-42)=0

We add all the numbers together, and all the variables

8x+42=0

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

8x=-42

x=-42/8

x=-5+1/4

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