3a+8=9a-1

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Solution for 3a+8=9a-1 equation:


Simplifying
3a + 8 = 9a + -1

Reorder the terms:
8 + 3a = 9a + -1

Reorder the terms:
8 + 3a = -1 + 9a

Solving
8 + 3a = -1 + 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.
8 + 3a + -9a = -1 + 9a + -9a

Combine like terms: 3a + -9a = -6a
8 + -6a = -1 + 9a + -9a

Combine like terms: 9a + -9a = 0
8 + -6a = -1 + 0
8 + -6a = -1

Add '-8' to each side of the equation.
8 + -8 + -6a = -1 + -8

Combine like terms: 8 + -8 = 0
0 + -6a = -1 + -8
-6a = -1 + -8

Combine like terms: -1 + -8 = -9
-6a = -9

Divide each side by '-6'.
a = 1.5

Simplifying
a = 1.5

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