4=-2t+20

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Solution for 4=-2t+20 equation:


Simplifying
4 = -2t + 20

Reorder the terms:
4 = 20 + -2t

Solving
4 = 20 + -2t

Solving for variable 't'.

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

Add '2t' to each side of the equation.
4 + 2t = 20 + -2t + 2t

Combine like terms: -2t + 2t = 0
4 + 2t = 20 + 0
4 + 2t = 20

Add '-4' to each side of the equation.
4 + -4 + 2t = 20 + -4

Combine like terms: 4 + -4 = 0
0 + 2t = 20 + -4
2t = 20 + -4

Combine like terms: 20 + -4 = 16
2t = 16

Divide each side by '2'.
t = 8

Simplifying
t = 8

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