3(7-5b)=-99

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Solution for 3(7-5b)=-99 equation:


Simplifying
3(7 + -5b) = -99
(7 * 3 + -5b * 3) = -99
(21 + -15b) = -99

Solving
21 + -15b = -99

Solving for variable 'b'.

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

Add '-21' to each side of the equation.
21 + -21 + -15b = -99 + -21

Combine like terms: 21 + -21 = 0
0 + -15b = -99 + -21
-15b = -99 + -21

Combine like terms: -99 + -21 = -120
-15b = -120

Divide each side by '-15'.
b = 8

Simplifying
b = 8

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