-90=-10-(-3b)

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Solution for -90=-10-(-3b) equation:


Simplifying
-90 = -10 + -1(-3b)

Remove parenthesis around (-3b)
-90 = -10 + -1 * -3b

Multiply -1 * -3
-90 = -10 + 3b

Solving
-90 = -10 + 3b

Solving for variable 'b'.

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

Add '-3b' to each side of the equation.
-90 + -3b = -10 + 3b + -3b

Combine like terms: 3b + -3b = 0
-90 + -3b = -10 + 0
-90 + -3b = -10

Add '90' to each side of the equation.
-90 + 90 + -3b = -10 + 90

Combine like terms: -90 + 90 = 0
0 + -3b = -10 + 90
-3b = -10 + 90

Combine like terms: -10 + 90 = 80
-3b = 80

Divide each side by '-3'.
b = -26.66666667

Simplifying
b = -26.66666667

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