3a+6-7a=2a+18

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Solution for 3a+6-7a=2a+18 equation:


Simplifying
3a + 6 + -7a = 2a + 18

Reorder the terms:
6 + 3a + -7a = 2a + 18

Combine like terms: 3a + -7a = -4a
6 + -4a = 2a + 18

Reorder the terms:
6 + -4a = 18 + 2a

Solving
6 + -4a = 18 + 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.
6 + -4a + -2a = 18 + 2a + -2a

Combine like terms: -4a + -2a = -6a
6 + -6a = 18 + 2a + -2a

Combine like terms: 2a + -2a = 0
6 + -6a = 18 + 0
6 + -6a = 18

Add '-6' to each side of the equation.
6 + -6 + -6a = 18 + -6

Combine like terms: 6 + -6 = 0
0 + -6a = 18 + -6
-6a = 18 + -6

Combine like terms: 18 + -6 = 12
-6a = 12

Divide each side by '-6'.
a = -2

Simplifying
a = -2

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