100=81t-9t*2

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Solution for 100=81t-9t*2 equation:


Simplifying
100 = 81t + -9t * 2

Reorder the terms for easier multiplication:
100 = 81t + -9 * 2t

Multiply -9 * 2
100 = 81t + -18t

Combine like terms: 81t + -18t = 63t
100 = 63t

Solving
100 = 63t

Solving for variable 't'.

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

Add '-63t' to each side of the equation.
100 + -63t = 63t + -63t

Combine like terms: 63t + -63t = 0
100 + -63t = 0

Add '-100' to each side of the equation.
100 + -100 + -63t = 0 + -100

Combine like terms: 100 + -100 = 0
0 + -63t = 0 + -100
-63t = 0 + -100

Combine like terms: 0 + -100 = -100
-63t = -100

Divide each side by '-63'.
t = 1.587301587

Simplifying
t = 1.587301587

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