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49-7x=8(-8x-1)
We move all terms to the left:
49-7x-(8(-8x-1))=0
We calculate terms in parentheses: -(8(-8x-1)), so:We get rid of parentheses
8(-8x-1)
We multiply parentheses
-64x-8
Back to the equation:
-(-64x-8)
-7x+64x+8+49=0
We add all the numbers together, and all the variables
57x+57=0
We move all terms containing x to the left, all other terms to the right
57x=-57
x=-57/57
x=-1
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