5a+2a=12-15

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Solution for 5a+2a=12-15 equation: 


Simplifying
5a + 2a = 12 + -15

Combine like terms: 5a + 2a = 7a
7a = 12 + -15

Combine like terms: 12 + -15 = -3
7a = -3

Solving
7a = -3

Solving for variable 'a'.

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

Divide each side by '7'.
a = -0.4285714286

Simplifying
a = -0.4285714286

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