7a-18=3a-2

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


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

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

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

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

Solving for variable 'a'.

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

Add '-3a' to each side of the equation.
-18 + 7a + -3a = -2 + 3a + -3a

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

Combine like terms: 3a + -3a = 0
-18 + 4a = -2 + 0
-18 + 4a = -2

Add '18' to each side of the equation.
-18 + 18 + 4a = -2 + 18

Combine like terms: -18 + 18 = 0
0 + 4a = -2 + 18
4a = -2 + 18

Combine like terms: -2 + 18 = 16
4a = 16

Divide each side by '4'.
a = 4

Simplifying
a = 4

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