13-2.3a=3.1a+40

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Solution for 13-2.3a=3.1a+40 equation: 


Simplifying
13 + -2.3a = 3.1a + 40

Reorder the terms:
13 + -2.3a = 40 + 3.1a

Solving
13 + -2.3a = 40 + 3.1a

Solving for variable 'a'.

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

Add '-3.1a' to each side of the equation.
13 + -2.3a + -3.1a = 40 + 3.1a + -3.1a

Combine like terms: -2.3a + -3.1a = -5.4a
13 + -5.4a = 40 + 3.1a + -3.1a

Combine like terms: 3.1a + -3.1a = 0.0
13 + -5.4a = 40 + 0.0
13 + -5.4a = 40

Add '-13' to each side of the equation.
13 + -13 + -5.4a = 40 + -13

Combine like terms: 13 + -13 = 0
0 + -5.4a = 40 + -13
-5.4a = 40 + -13

Combine like terms: 40 + -13 = 27
-5.4a = 27

Divide each side by '-5.4'.
a = -5

Simplifying
a = -5

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