4(t-30)=-20

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Solution for 4(t-30)=-20 equation:


Simplifying
4(t + -30) = -20

Reorder the terms:
4(-30 + t) = -20
(-30 * 4 + t * 4) = -20
(-120 + 4t) = -20

Solving
-120 + 4t = -20

Solving for variable 't'.

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

Add '120' to each side of the equation.
-120 + 120 + 4t = -20 + 120

Combine like terms: -120 + 120 = 0
0 + 4t = -20 + 120
4t = -20 + 120

Combine like terms: -20 + 120 = 100
4t = 100

Divide each side by '4'.
t = 25

Simplifying
t = 25

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