g(-3)+1=(-3+1)2-2(3+1)

Solution for g(-3)+1=(-3+1)2-2(3+1) equation:

Simplifying
g(-3) + 1 = (-3 + 1) * 2 + -2(3 + 1)

Reorder the terms for easier multiplication:
-3g + 1 = (-3 + 1) * 2 + -2(3 + 1)

Reorder the terms:
1 + -3g = (-3 + 1) * 2 + -2(3 + 1)

Combine like terms: -3 + 1 = -2
1 + -3g = (-2) * 2 + -2(3 + 1)

Multiply -2 * 2
1 + -3g = -4 + -2(3 + 1)

Combine like terms: 3 + 1 = 4
1 + -3g = -4 + -2(4)

Multiply -2 * 4
1 + -3g = -4 + -8

Combine like terms: -4 + -8 = -12
1 + -3g = -12

Solving
1 + -3g = -12

Solving for variable 'g'.

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

Add '-1' to each side of the equation.
1 + -1 + -3g = -12 + -1

Combine like terms: 1 + -1 = 0
0 + -3g = -12 + -1
-3g = -12 + -1

Combine like terms: -12 + -1 = -13
-3g = -13

Divide each side by '-3'.
g = 4.333333333

Simplifying
g = 4.333333333