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3x+2(5x-1)=56.50
We move all terms to the left:
3x+2(5x-1)-(56.50)=0
We add all the numbers together, and all the variables
3x+2(5x-1)-(56.5)=0
We add all the numbers together, and all the variables
3x+2(5x-1)-56.5=0
We multiply parentheses
3x+10x-2-56.5=0
We add all the numbers together, and all the variables
13x-58.5=0
We move all terms containing x to the left, all other terms to the right
13x=58.5
x=58.5/13
x=4+4.33333333333/8.66666666667
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