-50=-20-4.9t^2

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Solution for -50=-20-4.9t^2 equation: 


Simplifying
-50 = -20 + -4.9t2

Solving
-50 = -20 + -4.9t2

Solving for variable 't'.

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

Add '4.9t2' to each side of the equation.
-50 + 4.9t2 = -20 + -4.9t2 + 4.9t2

Combine like terms: -4.9t2 + 4.9t2 = 0.0
-50 + 4.9t2 = -20 + 0.0
-50 + 4.9t2 = -20

Add '50' to each side of the equation.
-50 + 50 + 4.9t2 = -20 + 50

Combine like terms: -50 + 50 = 0
0 + 4.9t2 = -20 + 50
4.9t2 = -20 + 50

Combine like terms: -20 + 50 = 30
4.9t2 = 30

Divide each side by '4.9'.
t2 = 6.12244898

Simplifying
t2 = 6.12244898

Take the square root of each side:
t = {-2.474358297, 2.474358297}

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