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x-3=4(x+5)
We move all terms to the left:
x-3-(4(x+5))=0
We calculate terms in parentheses: -(4(x+5)), so:We get rid of parentheses
4(x+5)
We multiply parentheses
4x+20
Back to the equation:
-(4x+20)
x-4x-20-3=0
We add all the numbers together, and all the variables
-3x-23=0
We move all terms containing x to the left, all other terms to the right
-3x=23
x=23/-3
x=-7+2/3
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