15-3a=-4+16

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Solution for 15-3a=-4+16 equation: 


Simplifying
15 + -3a = -4 + 16

Combine like terms: -4 + 16 = 12
15 + -3a = 12

Solving
15 + -3a = 12

Solving for variable 'a'.

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

Add '-15' to each side of the equation.
15 + -15 + -3a = 12 + -15

Combine like terms: 15 + -15 = 0
0 + -3a = 12 + -15
-3a = 12 + -15

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

Divide each side by '-3'.
a = 1

Simplifying
a = 1

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