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4(x-5)=-2(1+2x)
We move all terms to the left:
4(x-5)-(-2(1+2x))=0
We add all the numbers together, and all the variables
4(x-5)-(-2(2x+1))=0
We multiply parentheses
4x-(-2(2x+1))-20=0
We calculate terms in parentheses: -(-2(2x+1)), so:We get rid of parentheses
-2(2x+1)
We multiply parentheses
-4x-2
Back to the equation:
-(-4x-2)
4x+4x+2-20=0
We add all the numbers together, and all the variables
8x-18=0
We move all terms containing x to the left, all other terms to the right
8x=18
x=18/8
x=2+1/4
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