12x+3=4x-7x

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Solution for 12x+3=4x-7x equation:



12x+3=4x-7x
We move all terms to the left:
12x+3-(4x-7x)=0
We add all the numbers together, and all the variables
12x-(-3x)+3=0
We get rid of parentheses
12x+3x+3=0
We add all the numbers together, and all the variables
15x+3=0
We move all terms containing x to the left, all other terms to the right
15x=-3
x=-3/15
x=-1/5

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