3t^2-7+-20=0

Solution for 3t^2-7+-20=0 equation:

Simplifying
3t2 + -7 + -20 = 0

Reorder the terms:
-7 + -20 + 3t2 = 0

Combine like terms: -7 + -20 = -27
-27 + 3t2 = 0

Solving
-27 + 3t2 = 0

Solving for variable 't'.

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

Add '27' to each side of the equation.
-27 + 27 + 3t2 = 0 + 27

Combine like terms: -27 + 27 = 0
0 + 3t2 = 0 + 27
3t2 = 0 + 27

Combine like terms: 0 + 27 = 27
3t2 = 27

Divide each side by '3'.
t2 = 9

Simplifying
t2 = 9

Take the square root of each side:
t = {-3, 3}