6a+9-3a=a+3-4a

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Solution for 6a+9-3a=a+3-4a equation:


Simplifying
6a + 9 + -3a = a + 3 + -4a

Reorder the terms:
9 + 6a + -3a = a + 3 + -4a

Combine like terms: 6a + -3a = 3a
9 + 3a = a + 3 + -4a

Reorder the terms:
9 + 3a = 3 + a + -4a

Combine like terms: a + -4a = -3a
9 + 3a = 3 + -3a

Solving
9 + 3a = 3 + -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.
9 + 3a + 3a = 3 + -3a + 3a

Combine like terms: 3a + 3a = 6a
9 + 6a = 3 + -3a + 3a

Combine like terms: -3a + 3a = 0
9 + 6a = 3 + 0
9 + 6a = 3

Add '-9' to each side of the equation.
9 + -9 + 6a = 3 + -9

Combine like terms: 9 + -9 = 0
0 + 6a = 3 + -9
6a = 3 + -9

Combine like terms: 3 + -9 = -6
6a = -6

Divide each side by '6'.
a = -1

Simplifying
a = -1

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