6a-18=4a+7

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Solution for 6a-18=4a+7 equation:


Simplifying
6a + -18 = 4a + 7

Reorder the terms:
-18 + 6a = 4a + 7

Reorder the terms:
-18 + 6a = 7 + 4a

Solving
-18 + 6a = 7 + 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.
-18 + 6a + -4a = 7 + 4a + -4a

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

Combine like terms: 4a + -4a = 0
-18 + 2a = 7 + 0
-18 + 2a = 7

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

Combine like terms: -18 + 18 = 0
0 + 2a = 7 + 18
2a = 7 + 18

Combine like terms: 7 + 18 = 25
2a = 25

Divide each side by '2'.
a = 12.5

Simplifying
a = 12.5

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