-15=4a+a

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Solution for -15=4a+a equation:


Simplifying
-15 = 4a + a

Combine like terms: 4a + a = 5a
-15 = 5a

Solving
-15 = 5a

Solving for variable 'a'.

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

Add '-5a' to each side of the equation.
-15 + -5a = 5a + -5a

Combine like terms: 5a + -5a = 0
-15 + -5a = 0

Add '15' to each side of the equation.
-15 + 15 + -5a = 0 + 15

Combine like terms: -15 + 15 = 0
0 + -5a = 0 + 15
-5a = 0 + 15

Combine like terms: 0 + 15 = 15
-5a = 15

Divide each side by '-5'.
a = -3

Simplifying
a = -3

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