7a-9=6a+4

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Solution for 7a-9=6a+4 equation:


Simplifying
7a + -9 = 6a + 4

Reorder the terms:
-9 + 7a = 6a + 4

Reorder the terms:
-9 + 7a = 4 + 6a

Solving
-9 + 7a = 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.
-9 + 7a + -6a = 4 + 6a + -6a

Combine like terms: 7a + -6a = 1a
-9 + 1a = 4 + 6a + -6a

Combine like terms: 6a + -6a = 0
-9 + 1a = 4 + 0
-9 + 1a = 4

Add '9' to each side of the equation.
-9 + 9 + 1a = 4 + 9

Combine like terms: -9 + 9 = 0
0 + 1a = 4 + 9
1a = 4 + 9

Combine like terms: 4 + 9 = 13
1a = 13

Divide each side by '1'.
a = 13

Simplifying
a = 13

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