3=-3t^2-6t

Solution for 3=-3t^2-6t equation:

Simplifying
3 = -3t2 + -6t

Reorder the terms:
3 = -6t + -3t2

Solving
3 = -6t + -3t2

Solving for variable 't'.

Reorder the terms:
3 + 6t + 3t2 = -6t + 6t + -3t2 + 3t2

Combine like terms: -6t + 6t = 0
3 + 6t + 3t2 = 0 + -3t2 + 3t2
3 + 6t + 3t2 = -3t2 + 3t2

Combine like terms: -3t2 + 3t2 = 0
3 + 6t + 3t2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(1 + 2t + t2) = 0

Factor a trinomial.
3((1 + t)(1 + t)) = 0

Ignore the factor 3.
Subproblem 1
Set the factor '(1 + t)' equal to zero and attempt to solve:

Simplifying
1 + t = 0

Solving
1 + t = 0

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

Add '-1' to each side of the equation.
1 + -1 + t = 0 + -1

Combine like terms: 1 + -1 = 0
0 + t = 0 + -1
t = 0 + -1

Combine like terms: 0 + -1 = -1
t = -1

Simplifying
t = -1
Subproblem 2
Set the factor '(1 + t)' equal to zero and attempt to solve:

Simplifying
1 + t = 0

Solving
1 + t = 0

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

Add '-1' to each side of the equation.
1 + -1 + t = 0 + -1

Combine like terms: 1 + -1 = 0
0 + t = 0 + -1
t = 0 + -1

Combine like terms: 0 + -1 = -1
t = -1

Simplifying
t = -1
Solution
t = {-1, -1}