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4(x+2)=7(x-13)
We move all terms to the left:
4(x+2)-(7(x-13))=0
We multiply parentheses
4x-(7(x-13))+8=0
We calculate terms in parentheses: -(7(x-13)), so:We get rid of parentheses
7(x-13)
We multiply parentheses
7x-91
Back to the equation:
-(7x-91)
4x-7x+91+8=0
We add all the numbers together, and all the variables
-3x+99=0
We move all terms containing x to the left, all other terms to the right
-3x=-99
x=-99/-3
x=+33
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