160=-x^2+13x+130

Solution for 160=-x^2+13x+130 equation:

Simplifying
160 = -1x2 + 13x + 130

Reorder the terms:
160 = 130 + 13x + -1x2

Solving
160 = 130 + 13x + -1x2

Solving for variable 'x'.

Combine like terms: 160 + -130 = 30
30 + -13x + x2 = 130 + 13x + -1x2 + -130 + -13x + x2

Reorder the terms:
30 + -13x + x2 = 130 + -130 + 13x + -13x + -1x2 + x2

Combine like terms: 130 + -130 = 0
30 + -13x + x2 = 0 + 13x + -13x + -1x2 + x2
30 + -13x + x2 = 13x + -13x + -1x2 + x2

Combine like terms: 13x + -13x = 0
30 + -13x + x2 = 0 + -1x2 + x2
30 + -13x + x2 = -1x2 + x2

Combine like terms: -1x2 + x2 = 0
30 + -13x + x2 = 0

Factor a trinomial.
(3 + -1x)(10 + -1x) = 0

Subproblem 1
Set the factor '(3 + -1x)' equal to zero and attempt to solve:

Simplifying
3 + -1x = 0

Solving
3 + -1x = 0

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

Add '-3' to each side of the equation.
3 + -3 + -1x = 0 + -3

Combine like terms: 3 + -3 = 0
0 + -1x = 0 + -3
-1x = 0 + -3

Combine like terms: 0 + -3 = -3
-1x = -3

Divide each side by '-1'.
x = 3

Simplifying
x = 3
Subproblem 2
Set the factor '(10 + -1x)' equal to zero and attempt to solve:

Simplifying
10 + -1x = 0

Solving
10 + -1x = 0

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

Add '-10' to each side of the equation.
10 + -10 + -1x = 0 + -10

Combine like terms: 10 + -10 = 0
0 + -1x = 0 + -10
-1x = 0 + -10

Combine like terms: 0 + -10 = -10
-1x = -10

Divide each side by '-1'.
x = 10

Simplifying
x = 10
Solution
x = {3, 10}