3a+5a+7=

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Solution for 3a+5a+7= equation: 


Simplifying
3a + 5a + 7 = 0

Reorder the terms:
7 + 3a + 5a = 0

Combine like terms: 3a + 5a = 8a
7 + 8a = 0

Solving
7 + 8a = 0

Solving for variable 'a'.

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

Add '-7' to each side of the equation.
7 + -7 + 8a = 0 + -7

Combine like terms: 7 + -7 = 0
0 + 8a = 0 + -7
8a = 0 + -7

Combine like terms: 0 + -7 = -7
8a = -7

Divide each side by '8'.
a = -0.875

Simplifying
a = -0.875

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