3=4a+15

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Solution for 3=4a+15 equation:


Simplifying
3 = 4a + 15

Reorder the terms:
3 = 15 + 4a

Solving
3 = 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.
3 + -4a = 15 + 4a + -4a

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

Add '-3' to each side of the equation.
3 + -3 + -4a = 15 + -3

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

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

Divide each side by '-4'.
a = -3

Simplifying
a = -3

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