30=-5t+45

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Solution for 30=-5t+45 equation:


Simplifying
30 = -5t + 45

Reorder the terms:
30 = 45 + -5t

Solving
30 = 45 + -5t

Solving for variable 't'.

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

Add '5t' to each side of the equation.
30 + 5t = 45 + -5t + 5t

Combine like terms: -5t + 5t = 0
30 + 5t = 45 + 0
30 + 5t = 45

Add '-30' to each side of the equation.
30 + -30 + 5t = 45 + -30

Combine like terms: 30 + -30 = 0
0 + 5t = 45 + -30
5t = 45 + -30

Combine like terms: 45 + -30 = 15
5t = 15

Divide each side by '5'.
t = 3

Simplifying
t = 3

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