8a-1=7a+17-a

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Solution for 8a-1=7a+17-a equation:


Simplifying
8a + -1 = 7a + 17 + -1a

Reorder the terms:
-1 + 8a = 7a + 17 + -1a

Reorder the terms:
-1 + 8a = 17 + 7a + -1a

Combine like terms: 7a + -1a = 6a
-1 + 8a = 17 + 6a

Solving
-1 + 8a = 17 + 6a

Solving for variable 'a'.

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

Add '-6a' to each side of the equation.
-1 + 8a + -6a = 17 + 6a + -6a

Combine like terms: 8a + -6a = 2a
-1 + 2a = 17 + 6a + -6a

Combine like terms: 6a + -6a = 0
-1 + 2a = 17 + 0
-1 + 2a = 17

Add '1' to each side of the equation.
-1 + 1 + 2a = 17 + 1

Combine like terms: -1 + 1 = 0
0 + 2a = 17 + 1
2a = 17 + 1

Combine like terms: 17 + 1 = 18
2a = 18

Divide each side by '2'.
a = 9

Simplifying
a = 9

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