-25=9a-15-3a+2

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Solution for -25=9a-15-3a+2 equation:


Simplifying
-25 = 9a + -15 + -3a + 2

Reorder the terms:
-25 = -15 + 2 + 9a + -3a

Combine like terms: -15 + 2 = -13
-25 = -13 + 9a + -3a

Combine like terms: 9a + -3a = 6a
-25 = -13 + 6a

Solving
-25 = -13 + 6a

Solving for variable 'a'.

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

Add '-6a' to each side of the equation.
-25 + -6a = -13 + 6a + -6a

Combine like terms: 6a + -6a = 0
-25 + -6a = -13 + 0
-25 + -6a = -13

Add '25' to each side of the equation.
-25 + 25 + -6a = -13 + 25

Combine like terms: -25 + 25 = 0
0 + -6a = -13 + 25
-6a = -13 + 25

Combine like terms: -13 + 25 = 12
-6a = 12

Divide each side by '-6'.
a = -2

Simplifying
a = -2

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