-105=-5(1+4x)

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Solution for -105=-5(1+4x) equation:



-105=-5(1+4x)
We move all terms to the left:
-105-(-5(1+4x))=0
We add all the numbers together, and all the variables
-(-5(4x+1))-105=0
We calculate terms in parentheses: -(-5(4x+1)), so:
-5(4x+1)
We multiply parentheses
-20x-5
Back to the equation:
-(-20x-5)
We get rid of parentheses
20x+5-105=0
We add all the numbers together, and all the variables
20x-100=0
We move all terms containing x to the left, all other terms to the right
20x=100
x=100/20
x=5

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