-4+7a=9a-8

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Solution for -4+7a=9a-8 equation:


Simplifying
-4 + 7a = 9a + -8

Reorder the terms:
-4 + 7a = -8 + 9a

Solving
-4 + 7a = -8 + 9a

Solving for variable 'a'.

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

Add '-9a' to each side of the equation.
-4 + 7a + -9a = -8 + 9a + -9a

Combine like terms: 7a + -9a = -2a
-4 + -2a = -8 + 9a + -9a

Combine like terms: 9a + -9a = 0
-4 + -2a = -8 + 0
-4 + -2a = -8

Add '4' to each side of the equation.
-4 + 4 + -2a = -8 + 4

Combine like terms: -4 + 4 = 0
0 + -2a = -8 + 4
-2a = -8 + 4

Combine like terms: -8 + 4 = -4
-2a = -4

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

Simplifying
a = 2

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