9-3a=-8a+4

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Solution for 9-3a=-8a+4 equation:


Simplifying
9 + -3a = -8a + 4

Reorder the terms:
9 + -3a = 4 + -8a

Solving
9 + -3a = 4 + -8a

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '8a' to each side of the equation.
9 + -3a + 8a = 4 + -8a + 8a

Combine like terms: -3a + 8a = 5a
9 + 5a = 4 + -8a + 8a

Combine like terms: -8a + 8a = 0
9 + 5a = 4 + 0
9 + 5a = 4

Add '-9' to each side of the equation.
9 + -9 + 5a = 4 + -9

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

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

Divide each side by '5'.
a = -1

Simplifying
a = -1

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