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Simplifying
120 = 0.81t2
Solving
120 = 0.81t2
Solving for variable 't'.
Move all terms containing t to the left, all other terms to the right.
Add '-0.81t2' to each side of the equation.
120 + -0.81t2 = 0.81t2 + -0.81t2
Combine like terms: 0.81t2 + -0.81t2 = 0.00
120 + -0.81t2 = 0.00
Add '-120' to each side of the equation.
120 + -120 + -0.81t2 = 0.00 + -120
Combine like terms: 120 + -120 = 0
0 + -0.81t2 = 0.00 + -120
-0.81t2 = 0.00 + -120
Combine like terms: 0.00 + -120 = -120
-0.81t2 = -120
Divide each side by '-0.81'.
t2 = 148.1481481
Simplifying
t2 = 148.1481481
Take the square root of each side:
t = {-12.171612387, 12.171612387}
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