4a-9=25

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Solution for 4a-9=25 equation: 


Simplifying
4a + -9 = 25

Reorder the terms:
-9 + 4a = 25

Solving
-9 + 4a = 25

Solving for variable 'a'.

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

Add '9' to each side of the equation.
-9 + 9 + 4a = 25 + 9

Combine like terms: -9 + 9 = 0
0 + 4a = 25 + 9
4a = 25 + 9

Combine like terms: 25 + 9 = 34
4a = 34

Divide each side by '4'.
a = 8.5

Simplifying
a = 8.5

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