3b+15=5b-3

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Solution for 3b+15=5b-3 equation:


Simplifying
3b + 15 = 5b + -3

Reorder the terms:
15 + 3b = 5b + -3

Reorder the terms:
15 + 3b = -3 + 5b

Solving
15 + 3b = -3 + 5b

Solving for variable 'b'.

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

Add '-5b' to each side of the equation.
15 + 3b + -5b = -3 + 5b + -5b

Combine like terms: 3b + -5b = -2b
15 + -2b = -3 + 5b + -5b

Combine like terms: 5b + -5b = 0
15 + -2b = -3 + 0
15 + -2b = -3

Add '-15' to each side of the equation.
15 + -15 + -2b = -3 + -15

Combine like terms: 15 + -15 = 0
0 + -2b = -3 + -15
-2b = -3 + -15

Combine like terms: -3 + -15 = -18
-2b = -18

Divide each side by '-2'.
b = 9

Simplifying
b = 9

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