13-2.3a=3.1+40

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


Simplifying
13 + -2.3a = 3.1 + 40

Combine like terms: 3.1 + 40 = 43.1
13 + -2.3a = 43.1

Solving
13 + -2.3a = 43.1

Solving for variable 'a'.

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

Add '-13' to each side of the equation.
13 + -13 + -2.3a = 43.1 + -13

Combine like terms: 13 + -13 = 0
0 + -2.3a = 43.1 + -13
-2.3a = 43.1 + -13

Combine like terms: 43.1 + -13 = 30.1
-2.3a = 30.1

Divide each side by '-2.3'.
a = -13.08695652

Simplifying
a = -13.08695652

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