((60-x)2)/4=20

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Solution for ((60-x)2)/4=20 equation:



((60-x)2)/4=20
We move all terms to the left:
((60-x)2)/4-(20)=0
We add all the numbers together, and all the variables
((-1x+60)2)/4-20=0
We multiply all the terms by the denominator
((-1x+60)2)-20*4=0
We calculate terms in parentheses: +((-1x+60)2), so:
(-1x+60)2
We multiply parentheses
-2x+120
Back to the equation:
+(-2x+120)
We add all the numbers together, and all the variables
(-2x+120)-80=0
We get rid of parentheses
-2x+120-80=0
We add all the numbers together, and all the variables
-2x+40=0
We move all terms containing x to the left, all other terms to the right
-2x=-40
x=-40/-2
x=+20

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