9x+3x=7x+13

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Solution for 9x+3x=7x+13 equation:



9x+3x=7x+13
We move all terms to the left:
9x+3x-(7x+13)=0
We add all the numbers together, and all the variables
12x-(7x+13)=0
We get rid of parentheses
12x-7x-13=0
We add all the numbers together, and all the variables
5x-13=0
We move all terms containing x to the left, all other terms to the right
5x=13
x=13/5
x=2+3/5

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