5(b-1)+10(b+2)=45

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Solution for 5(b-1)+10(b+2)=45 equation:


Simplifying
5(b + -1) + 10(b + 2) = 45

Reorder the terms:
5(-1 + b) + 10(b + 2) = 45
(-1 * 5 + b * 5) + 10(b + 2) = 45
(-5 + 5b) + 10(b + 2) = 45

Reorder the terms:
-5 + 5b + 10(2 + b) = 45
-5 + 5b + (2 * 10 + b * 10) = 45
-5 + 5b + (20 + 10b) = 45

Reorder the terms:
-5 + 20 + 5b + 10b = 45

Combine like terms: -5 + 20 = 15
15 + 5b + 10b = 45

Combine like terms: 5b + 10b = 15b
15 + 15b = 45

Solving
15 + 15b = 45

Solving for variable 'b'.

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

Add '-15' to each side of the equation.
15 + -15 + 15b = 45 + -15

Combine like terms: 15 + -15 = 0
0 + 15b = 45 + -15
15b = 45 + -15

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

Divide each side by '15'.
b = 2

Simplifying
b = 2

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