3a-12=5-7a

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Solution for 3a-12=5-7a equation:


Simplifying
3a + -12 = 5 + -7a

Reorder the terms:
-12 + 3a = 5 + -7a

Solving
-12 + 3a = 5 + -7a

Solving for variable 'a'.

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

Add '7a' to each side of the equation.
-12 + 3a + 7a = 5 + -7a + 7a

Combine like terms: 3a + 7a = 10a
-12 + 10a = 5 + -7a + 7a

Combine like terms: -7a + 7a = 0
-12 + 10a = 5 + 0
-12 + 10a = 5

Add '12' to each side of the equation.
-12 + 12 + 10a = 5 + 12

Combine like terms: -12 + 12 = 0
0 + 10a = 5 + 12
10a = 5 + 12

Combine like terms: 5 + 12 = 17
10a = 17

Divide each side by '10'.
a = 1.7

Simplifying
a = 1.7

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