3a+12-6a+8=4a-1

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Solution for 3a+12-6a+8=4a-1 equation:


Simplifying
3a + 12 + -6a + 8 = 4a + -1

Reorder the terms:
12 + 8 + 3a + -6a = 4a + -1

Combine like terms: 12 + 8 = 20
20 + 3a + -6a = 4a + -1

Combine like terms: 3a + -6a = -3a
20 + -3a = 4a + -1

Reorder the terms:
20 + -3a = -1 + 4a

Solving
20 + -3a = -1 + 4a

Solving for variable 'a'.

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

Add '-4a' to each side of the equation.
20 + -3a + -4a = -1 + 4a + -4a

Combine like terms: -3a + -4a = -7a
20 + -7a = -1 + 4a + -4a

Combine like terms: 4a + -4a = 0
20 + -7a = -1 + 0
20 + -7a = -1

Add '-20' to each side of the equation.
20 + -20 + -7a = -1 + -20

Combine like terms: 20 + -20 = 0
0 + -7a = -1 + -20
-7a = -1 + -20

Combine like terms: -1 + -20 = -21
-7a = -21

Divide each side by '-7'.
a = 3

Simplifying
a = 3

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