12a-5a=2a-7

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Solution for 12a-5a=2a-7 equation:


Simplifying
12a + -5a = 2a + -7

Combine like terms: 12a + -5a = 7a
7a = 2a + -7

Reorder the terms:
7a = -7 + 2a

Solving
7a = -7 + 2a

Solving for variable 'a'.

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

Add '-2a' to each side of the equation.
7a + -2a = -7 + 2a + -2a

Combine like terms: 7a + -2a = 5a
5a = -7 + 2a + -2a

Combine like terms: 2a + -2a = 0
5a = -7 + 0
5a = -7

Divide each side by '5'.
a = -1.4

Simplifying
a = -1.4

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