a+27=4a-15

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Solution for a+27=4a-15 equation:


Simplifying
a + 27 = 4a + -15

Reorder the terms:
27 + a = 4a + -15

Reorder the terms:
27 + a = -15 + 4a

Solving
27 + a = -15 + 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.
27 + a + -4a = -15 + 4a + -4a

Combine like terms: a + -4a = -3a
27 + -3a = -15 + 4a + -4a

Combine like terms: 4a + -4a = 0
27 + -3a = -15 + 0
27 + -3a = -15

Add '-27' to each side of the equation.
27 + -27 + -3a = -15 + -27

Combine like terms: 27 + -27 = 0
0 + -3a = -15 + -27
-3a = -15 + -27

Combine like terms: -15 + -27 = -42
-3a = -42

Divide each side by '-3'.
a = 14

Simplifying
a = 14

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