0.25(a-9)=3

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Solution for 0.25(a-9)=3 equation: 


Simplifying
0.25(a + -9) = 3

Reorder the terms:
0.25(-9 + a) = 3
(-9 * 0.25 + a * 0.25) = 3
(-2.25 + 0.25a) = 3

Solving
-2.25 + 0.25a = 3

Solving for variable 'a'.

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

Add '2.25' to each side of the equation.
-2.25 + 2.25 + 0.25a = 3 + 2.25

Combine like terms: -2.25 + 2.25 = 0.00
0.00 + 0.25a = 3 + 2.25
0.25a = 3 + 2.25

Combine like terms: 3 + 2.25 = 5.25
0.25a = 5.25

Divide each side by '0.25'.
a = 21

Simplifying
a = 21

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