-20+(20d)=100

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Solution for -20+(20d)=100 equation: 


Simplifying
-20 + (20d) = 100

Solving
-20 + (20d) = 100

Solving for variable 'd'.

Move all terms containing d to the left, all other terms to the right.

Add '20' to each side of the equation.
-20 + 20 + (20d) = 100 + 20

Combine like terms: -20 + 20 = 0
0 + (20d) = 100 + 20
(20d) = 100 + 20

Combine like terms: 100 + 20 = 120
(20d) = 120

Divide each side by '20'.
d = 6

Simplifying
d = 6

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