a+15=4a

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Solution for a+15=4a equation:


Simplifying
a + 15 = 4a

Reorder the terms:
15 + a = 4a

Solving
15 + a = 4a

Solving for variable 'a'.

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

Add '-4a' to each side of the equation.
15 + a + -4a = 4a + -4a

Combine like terms: a + -4a = -3a
15 + -3a = 4a + -4a

Combine like terms: 4a + -4a = 0
15 + -3a = 0

Add '-15' to each side of the equation.
15 + -15 + -3a = 0 + -15

Combine like terms: 15 + -15 = 0
0 + -3a = 0 + -15
-3a = 0 + -15

Combine like terms: 0 + -15 = -15
-3a = -15

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

Simplifying
a = 5

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