-3(10-5b)=15

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Solution for -3(10-5b)=15 equation: 


Simplifying
-3(10 + -5b) = 15
(10 * -3 + -5b * -3) = 15
(-30 + 15b) = 15

Solving
-30 + 15b = 15

Solving for variable 'b'.

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

Add '30' to each side of the equation.
-30 + 30 + 15b = 15 + 30

Combine like terms: -30 + 30 = 0
0 + 15b = 15 + 30
15b = 15 + 30

Combine like terms: 15 + 30 = 45
15b = 45

Divide each side by '15'.
b = 3

Simplifying
b = 3

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