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10x-4=7x(x-1)-7x(x+1)
We move all terms to the left:
10x-4-(7x(x-1)-7x(x+1))=0
We calculate terms in parentheses: -(7x(x-1)-7x(x+1)), so:We get rid of parentheses
7x(x-1)-7x(x+1)
We multiply parentheses
7x^2-7x^2-7x-7x
We add all the numbers together, and all the variables
-14x
Back to the equation:
-(-14x)
10x+14x-4=0
We add all the numbers together, and all the variables
24x-4=0
We move all terms containing x to the left, all other terms to the right
24x=4
x=4/24
x=1/6
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