220=-8(-8-7)-4x

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Solution for 220=-8(-8-7)-4x equation:



220=-8(-8-7)-4x
We move all terms to the left:
220-(-8(-8-7)-4x)=0
We add all the numbers together, and all the variables
-(-8(-15)-4x)+220=0
We calculate terms in parentheses: -(-8(-15)-4x), so:
-8(-15)-4x
determiningTheFunctionDomain -4x-8(-15)
We add all the numbers together, and all the variables
-4x+120
Back to the equation:
-(-4x+120)
We get rid of parentheses
4x-120+220=0
We add all the numbers together, and all the variables
4x+100=0
We move all terms containing x to the left, all other terms to the right
4x=-100
x=-100/4
x=-25

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