5a+12=3a-3

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Solution for 5a+12=3a-3 equation:


Simplifying
5a + 12 = 3a + -3

Reorder the terms:
12 + 5a = 3a + -3

Reorder the terms:
12 + 5a = -3 + 3a

Solving
12 + 5a = -3 + 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 + 5a + -3a = -3 + 3a + -3a

Combine like terms: 5a + -3a = 2a
12 + 2a = -3 + 3a + -3a

Combine like terms: 3a + -3a = 0
12 + 2a = -3 + 0
12 + 2a = -3

Add '-12' to each side of the equation.
12 + -12 + 2a = -3 + -12

Combine like terms: 12 + -12 = 0
0 + 2a = -3 + -12
2a = -3 + -12

Combine like terms: -3 + -12 = -15
2a = -15

Divide each side by '2'.
a = -7.5

Simplifying
a = -7.5

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