2a-21.1=a+2.9

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Solution for 2a-21.1=a+2.9 equation:


Simplifying
2a + -21.1 = a + 2.9

Reorder the terms:
-21.1 + 2a = a + 2.9

Reorder the terms:
-21.1 + 2a = 2.9 + a

Solving
-21.1 + 2a = 2.9 + a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
-21.1 + 2a + -1a = 2.9 + a + -1a

Combine like terms: 2a + -1a = 1a
-21.1 + 1a = 2.9 + a + -1a

Combine like terms: a + -1a = 0
-21.1 + 1a = 2.9 + 0
-21.1 + 1a = 2.9

Add '21.1' to each side of the equation.
-21.1 + 21.1 + 1a = 2.9 + 21.1

Combine like terms: -21.1 + 21.1 = 0.0
0.0 + 1a = 2.9 + 21.1
1a = 2.9 + 21.1

Combine like terms: 2.9 + 21.1 = 24
1a = 24

Divide each side by '1'.
a = 24

Simplifying
a = 24

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