123+13a+7a=

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Solution for 123+13a+7a= equation: 


Simplifying
123 + 13a + 7a = 0

Combine like terms: 13a + 7a = 20a
123 + 20a = 0

Solving
123 + 20a = 0

Solving for variable 'a'.

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

Add '-123' to each side of the equation.
123 + -123 + 20a = 0 + -123

Combine like terms: 123 + -123 = 0
0 + 20a = 0 + -123
20a = 0 + -123

Combine like terms: 0 + -123 = -123
20a = -123

Divide each side by '20'.
a = -6.15

Simplifying
a = -6.15

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