7x+12+9x=4

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Solution for 7x+12+9x=4 equation: 



7x+12+9x=4

We move all terms to the left:

7x+12+9x-(4)=0

We add all the numbers together, and all the variables

16x+8=0

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

16x=-8

x=-8/16

x=-1/2

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