13b-9b=12-(-4)

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Solution for 13b-9b=12-(-4) equation:


Simplifying
13b + -9b = 12 + -1(-4)

Combine like terms: 13b + -9b = 4b
4b = 12 + -1(-4)

Multiply -1 * -4
4b = 12 + 4

Combine like terms: 12 + 4 = 16
4b = 16

Solving
4b = 16

Solving for variable 'b'.

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

Divide each side by '4'.
b = 4

Simplifying
b = 4

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