-50=-2a+4(-2+4a)

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Solution for -50=-2a+4(-2+4a) equation:



-50=-2a+4(-2+4a)
We move all terms to the left:
-50-(-2a+4(-2+4a))=0
We add all the numbers together, and all the variables
-(-2a+4(4a-2))-50=0
We calculate terms in parentheses: -(-2a+4(4a-2)), so:
-2a+4(4a-2)
We multiply parentheses
-2a+16a-8
We add all the numbers together, and all the variables
14a-8
Back to the equation:
-(14a-8)
We get rid of parentheses
-14a+8-50=0
We add all the numbers together, and all the variables
-14a-42=0
We move all terms containing a to the left, all other terms to the right
-14a=42
a=42/-14
a=-3

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