a-9-5a=-25

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Solution for a-9-5a=-25 equation:


Simplifying
a + -9 + -5a = -25

Reorder the terms:
-9 + a + -5a = -25

Combine like terms: a + -5a = -4a
-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 = -16
-4a = -16

Divide each side by '-4'.
a = 4

Simplifying
a = 4

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