3b+4=5b-13

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Solution for 3b+4=5b-13 equation:


Simplifying
3b + 4 = 5b + -13

Reorder the terms:
4 + 3b = 5b + -13

Reorder the terms:
4 + 3b = -13 + 5b

Solving
4 + 3b = -13 + 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.
4 + 3b + -5b = -13 + 5b + -5b

Combine like terms: 3b + -5b = -2b
4 + -2b = -13 + 5b + -5b

Combine like terms: 5b + -5b = 0
4 + -2b = -13 + 0
4 + -2b = -13

Add '-4' to each side of the equation.
4 + -4 + -2b = -13 + -4

Combine like terms: 4 + -4 = 0
0 + -2b = -13 + -4
-2b = -13 + -4

Combine like terms: -13 + -4 = -17
-2b = -17

Divide each side by '-2'.
b = 8.5

Simplifying
b = 8.5

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