40-9a=2a-3a

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Solution for 40-9a=2a-3a equation:


Simplifying
40 + -9a = 2a + -3a

Combine like terms: 2a + -3a = -1a
40 + -9a = -1a

Solving
40 + -9a = -1a

Solving for variable 'a'.

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

Add 'a' to each side of the equation.
40 + -9a + a = -1a + a

Combine like terms: -9a + a = -8a
40 + -8a = -1a + a

Combine like terms: -1a + a = 0
40 + -8a = 0

Add '-40' to each side of the equation.
40 + -40 + -8a = 0 + -40

Combine like terms: 40 + -40 = 0
0 + -8a = 0 + -40
-8a = 0 + -40

Combine like terms: 0 + -40 = -40
-8a = -40

Divide each side by '-8'.
a = 5

Simplifying
a = 5

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