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29.99+12x=79.99+4x
We move all terms to the left:
29.99+12x-(79.99+4x)=0
We add all the numbers together, and all the variables
12x-(4x+79.99)+29.99=0
We get rid of parentheses
12x-4x-79.99+29.99=0
We add all the numbers together, and all the variables
8x-50=0
We move all terms containing x to the left, all other terms to the right
8x=50
x=50/8
x=6+1/4
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