-2W+8(W-7)=-20

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Solution for -2W+8(W-7)=-20 equation: 


Simplifying
-2W + 8(W + -7) = -20

Reorder the terms:
-2W + 8(-7 + W) = -20
-2W + (-7 * 8 + W * 8) = -20
-2W + (-56 + 8W) = -20

Reorder the terms:
-56 + -2W + 8W = -20

Combine like terms: -2W + 8W = 6W
-56 + 6W = -20

Solving
-56 + 6W = -20

Solving for variable 'W'.

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

Add '56' to each side of the equation.
-56 + 56 + 6W = -20 + 56

Combine like terms: -56 + 56 = 0
0 + 6W = -20 + 56
6W = -20 + 56

Combine like terms: -20 + 56 = 36
6W = 36

Divide each side by '6'.
W = 6

Simplifying
W = 6

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