-10a+40=9

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Solution for -10a+40=9 equation: 


Simplifying
-10a + 40 = 9

Reorder the terms:
40 + -10a = 9

Solving
40 + -10a = 9

Solving for variable 'a'.

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

Add '-40' to each side of the equation.
40 + -40 + -10a = 9 + -40

Combine like terms: 40 + -40 = 0
0 + -10a = 9 + -40
-10a = 9 + -40

Combine like terms: 9 + -40 = -31
-10a = -31

Divide each side by '-10'.
a = 3.1

Simplifying
a = 3.1

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