140=-3d+20

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Solution for 140=-3d+20 equation:


Simplifying
140 = -3d + 20

Reorder the terms:
140 = 20 + -3d

Solving
140 = 20 + -3d

Solving for variable 'd'.

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

Add '3d' to each side of the equation.
140 + 3d = 20 + -3d + 3d

Combine like terms: -3d + 3d = 0
140 + 3d = 20 + 0
140 + 3d = 20

Add '-140' to each side of the equation.
140 + -140 + 3d = 20 + -140

Combine like terms: 140 + -140 = 0
0 + 3d = 20 + -140
3d = 20 + -140

Combine like terms: 20 + -140 = -120
3d = -120

Divide each side by '3'.
d = -40

Simplifying
d = -40

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