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Simplifying
130 = 0.81t2
Solving
130 = 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.
130 + -0.81t2 = 0.81t2 + -0.81t2
Combine like terms: 0.81t2 + -0.81t2 = 0.00
130 + -0.81t2 = 0.00
Add '-130' to each side of the equation.
130 + -130 + -0.81t2 = 0.00 + -130
Combine like terms: 130 + -130 = 0
0 + -0.81t2 = 0.00 + -130
-0.81t2 = 0.00 + -130
Combine like terms: 0.00 + -130 = -130
-0.81t2 = -130
Divide each side by '-0.81'.
t2 = 160.4938272
Simplifying
t2 = 160.4938272
Take the square root of each side:
t = {-12.668615836, 12.668615836}
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