2a-9=9a-10

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Solution for 2a-9=9a-10 equation:


Simplifying
2a + -9 = 9a + -10

Reorder the terms:
-9 + 2a = 9a + -10

Reorder the terms:
-9 + 2a = -10 + 9a

Solving
-9 + 2a = -10 + 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.
-9 + 2a + -9a = -10 + 9a + -9a

Combine like terms: 2a + -9a = -7a
-9 + -7a = -10 + 9a + -9a

Combine like terms: 9a + -9a = 0
-9 + -7a = -10 + 0
-9 + -7a = -10

Add '9' to each side of the equation.
-9 + 9 + -7a = -10 + 9

Combine like terms: -9 + 9 = 0
0 + -7a = -10 + 9
-7a = -10 + 9

Combine like terms: -10 + 9 = -1
-7a = -1

Divide each side by '-7'.
a = 0.1428571429

Simplifying
a = 0.1428571429

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