3b+15=2b-4

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Solution for 3b+15=2b-4 equation:


Simplifying
3b + 15 = 2b + -4

Reorder the terms:
15 + 3b = 2b + -4

Reorder the terms:
15 + 3b = -4 + 2b

Solving
15 + 3b = -4 + 2b

Solving for variable 'b'.

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

Add '-2b' to each side of the equation.
15 + 3b + -2b = -4 + 2b + -2b

Combine like terms: 3b + -2b = 1b
15 + 1b = -4 + 2b + -2b

Combine like terms: 2b + -2b = 0
15 + 1b = -4 + 0
15 + 1b = -4

Add '-15' to each side of the equation.
15 + -15 + 1b = -4 + -15

Combine like terms: 15 + -15 = 0
0 + 1b = -4 + -15
1b = -4 + -15

Combine like terms: -4 + -15 = -19
1b = -19

Divide each side by '1'.
b = -19

Simplifying
b = -19

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