8.7=19.8-4t(3)

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Solution for 8.7=19.8-4t(3) equation:


Simplifying
8.7 = 19.8 + -4t(3)

Reorder the terms for easier multiplication:
8.7 = 19.8 + -4 * 3t

Multiply -4 * 3
8.7 = 19.8 + -12t

Solving
8.7 = 19.8 + -12t

Solving for variable 't'.

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

Add '12t' to each side of the equation.
8.7 + 12t = 19.8 + -12t + 12t

Combine like terms: -12t + 12t = 0
8.7 + 12t = 19.8 + 0
8.7 + 12t = 19.8

Add '-8.7' to each side of the equation.
8.7 + -8.7 + 12t = 19.8 + -8.7

Combine like terms: 8.7 + -8.7 = 0.0
0.0 + 12t = 19.8 + -8.7
12t = 19.8 + -8.7

Combine like terms: 19.8 + -8.7 = 11.1
12t = 11.1

Divide each side by '12'.
t = 0.925

Simplifying
t = 0.925

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