5a-7a-12=-4a-3+7-2a

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Solution for 5a-7a-12=-4a-3+7-2a equation: 


Simplifying
5a + -7a + -12 = -4a + -3 + 7 + -2a

Reorder the terms:
-12 + 5a + -7a = -4a + -3 + 7 + -2a

Combine like terms: 5a + -7a = -2a
-12 + -2a = -4a + -3 + 7 + -2a

Reorder the terms:
-12 + -2a = -3 + 7 + -4a + -2a

Combine like terms: -3 + 7 = 4
-12 + -2a = 4 + -4a + -2a

Combine like terms: -4a + -2a = -6a
-12 + -2a = 4 + -6a

Solving
-12 + -2a = 4 + -6a

Solving for variable 'a'.

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

Add '6a' to each side of the equation.
-12 + -2a + 6a = 4 + -6a + 6a

Combine like terms: -2a + 6a = 4a
-12 + 4a = 4 + -6a + 6a

Combine like terms: -6a + 6a = 0
-12 + 4a = 4 + 0
-12 + 4a = 4

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

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

Combine like terms: 4 + 12 = 16
4a = 16

Divide each side by '4'.
a = 4

Simplifying
a = 4

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