6a+9=4a-5

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Solution for 6a+9=4a-5 equation:


Simplifying
6a + 9 = 4a + -5

Reorder the terms:
9 + 6a = 4a + -5

Reorder the terms:
9 + 6a = -5 + 4a

Solving
9 + 6a = -5 + 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.
9 + 6a + -4a = -5 + 4a + -4a

Combine like terms: 6a + -4a = 2a
9 + 2a = -5 + 4a + -4a

Combine like terms: 4a + -4a = 0
9 + 2a = -5 + 0
9 + 2a = -5

Add '-9' to each side of the equation.
9 + -9 + 2a = -5 + -9

Combine like terms: 9 + -9 = 0
0 + 2a = -5 + -9
2a = -5 + -9

Combine like terms: -5 + -9 = -14
2a = -14

Divide each side by '2'.
a = -7

Simplifying
a = -7

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