1-9a=15-2a

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Solution for 1-9a=15-2a equation:


Simplifying
1 + -9a = 15 + -2a

Solving
1 + -9a = 15 + -2a

Solving for variable 'a'.

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

Add '2a' to each side of the equation.
1 + -9a + 2a = 15 + -2a + 2a

Combine like terms: -9a + 2a = -7a
1 + -7a = 15 + -2a + 2a

Combine like terms: -2a + 2a = 0
1 + -7a = 15 + 0
1 + -7a = 15

Add '-1' to each side of the equation.
1 + -1 + -7a = 15 + -1

Combine like terms: 1 + -1 = 0
0 + -7a = 15 + -1
-7a = 15 + -1

Combine like terms: 15 + -1 = 14
-7a = 14

Divide each side by '-7'.
a = -2

Simplifying
a = -2

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