6a+9=4a+7

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


Simplifying
6a + 9 = 4a + 7

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

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

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

Combine like terms: 6a + -4a = 2a
9 + 2a = 7 + 4a + -4a

Combine like terms: 4a + -4a = 0
9 + 2a = 7 + 0
9 + 2a = 7

Add '-9' to each side of the equation.
9 + -9 + 2a = 7 + -9

Combine like terms: 9 + -9 = 0
0 + 2a = 7 + -9
2a = 7 + -9

Combine like terms: 7 + -9 = -2
2a = -2

Divide each side by '2'.
a = -1

Simplifying
a = -1

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