90=-6(1+8q)

Solution for 90=-6(1+8q) equation:

Simplifying
90 = -6(1 + 8q)
90 = (1 * -6 + 8q * -6)
90 = (-6 + -48q)

Solving
90 = -6 + -48q

Solving for variable 'q'.

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

Add '48q' to each side of the equation.
90 + 48q = -6 + -48q + 48q

Combine like terms: -48q + 48q = 0
90 + 48q = -6 + 0
90 + 48q = -6

Add '-90' to each side of the equation.
90 + -90 + 48q = -6 + -90

Combine like terms: 90 + -90 = 0
0 + 48q = -6 + -90
48q = -6 + -90

Combine like terms: -6 + -90 = -96
48q = -96

Divide each side by '48'.
q = -2

Simplifying
q = -2