-15=15(6-b)

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Solution for -15=15(6-b) equation: 


Simplifying
-15 = 15(6 + -1b)
-15 = (6 * 15 + -1b * 15)
-15 = (90 + -15b)

Solving
-15 = 90 + -15b

Solving for variable 'b'.

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

Add '15b' to each side of the equation.
-15 + 15b = 90 + -15b + 15b

Combine like terms: -15b + 15b = 0
-15 + 15b = 90 + 0
-15 + 15b = 90

Add '15' to each side of the equation.
-15 + 15 + 15b = 90 + 15

Combine like terms: -15 + 15 = 0
0 + 15b = 90 + 15
15b = 90 + 15

Combine like terms: 90 + 15 = 105
15b = 105

Divide each side by '15'.
b = 7

Simplifying
b = 7

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