4(3+a)=3a+15

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Solution for 4(3+a)=3a+15 equation:


Simplifying
4(3 + a) = 3a + 15
(3 * 4 + a * 4) = 3a + 15
(12 + 4a) = 3a + 15

Reorder the terms:
12 + 4a = 15 + 3a

Solving
12 + 4a = 15 + 3a

Solving for variable 'a'.

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

Add '-3a' to each side of the equation.
12 + 4a + -3a = 15 + 3a + -3a

Combine like terms: 4a + -3a = 1a
12 + 1a = 15 + 3a + -3a

Combine like terms: 3a + -3a = 0
12 + 1a = 15 + 0
12 + 1a = 15

Add '-12' to each side of the equation.
12 + -12 + 1a = 15 + -12

Combine like terms: 12 + -12 = 0
0 + 1a = 15 + -12
1a = 15 + -12

Combine like terms: 15 + -12 = 3
1a = 3

Divide each side by '1'.
a = 3

Simplifying
a = 3

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