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-6x+8(4-8x)=-458
We move all terms to the left:
-6x+8(4-8x)-(-458)=0
We add all the numbers together, and all the variables
-6x+8(-8x+4)-(-458)=0
We add all the numbers together, and all the variables
-6x+8(-8x+4)+458=0
We multiply parentheses
-6x-64x+32+458=0
We add all the numbers together, and all the variables
-70x+490=0
We move all terms containing x to the left, all other terms to the right
-70x=-490
x=-490/-70
x=+7
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