-3(a-3)+4=a+12

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Solution for -3(a-3)+4=a+12 equation:


Simplifying
-3(a + -3) + 4 = a + 12

Reorder the terms:
-3(-3 + a) + 4 = a + 12
(-3 * -3 + a * -3) + 4 = a + 12
(9 + -3a) + 4 = a + 12

Reorder the terms:
9 + 4 + -3a = a + 12

Combine like terms: 9 + 4 = 13
13 + -3a = a + 12

Reorder the terms:
13 + -3a = 12 + a

Solving
13 + -3a = 12 + a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
13 + -3a + -1a = 12 + a + -1a

Combine like terms: -3a + -1a = -4a
13 + -4a = 12 + a + -1a

Combine like terms: a + -1a = 0
13 + -4a = 12 + 0
13 + -4a = 12

Add '-13' to each side of the equation.
13 + -13 + -4a = 12 + -13

Combine like terms: 13 + -13 = 0
0 + -4a = 12 + -13
-4a = 12 + -13

Combine like terms: 12 + -13 = -1
-4a = -1

Divide each side by '-4'.
a = 0.25

Simplifying
a = 0.25

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