2a+3-9a=3a

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


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

Reorder the terms:
3 + 2a + -9a = 3a

Combine like terms: 2a + -9a = -7a
3 + -7a = 3a

Solving
3 + -7a = 3a

Solving for variable 'a'.

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

Add '-3a' to each side of the equation.
3 + -7a + -3a = 3a + -3a

Combine like terms: -7a + -3a = -10a
3 + -10a = 3a + -3a

Combine like terms: 3a + -3a = 0
3 + -10a = 0

Add '-3' to each side of the equation.
3 + -3 + -10a = 0 + -3

Combine like terms: 3 + -3 = 0
0 + -10a = 0 + -3
-10a = 0 + -3

Combine like terms: 0 + -3 = -3
-10a = -3

Divide each side by '-10'.
a = 0.3

Simplifying
a = 0.3

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