3b+4b-13=

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

Simplifying
3b + 4b + -13 = 0

Reorder the terms:
-13 + 3b + 4b = 0

Combine like terms: 3b + 4b = 7b
-13 + 7b = 0

Solving
-13 + 7b = 0

Solving for variable 'b'.

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

Add '13' to each side of the equation.
-13 + 13 + 7b = 0 + 13

Combine like terms: -13 + 13 = 0
0 + 7b = 0 + 13
7b = 0 + 13

Combine like terms: 0 + 13 = 13
7b = 13

Divide each side by '7'.
b = 1.857142857

Simplifying
b = 1.857142857