13a-17-9a+12=

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Solution for 13a-17-9a+12= equation:


Simplifying
13a + -17 + -9a + 12 = 0

Reorder the terms:
-17 + 12 + 13a + -9a = 0

Combine like terms: -17 + 12 = -5
-5 + 13a + -9a = 0

Combine like terms: 13a + -9a = 4a
-5 + 4a = 0

Solving
-5 + 4a = 0

Solving for variable 'a'.

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

Add '5' to each side of the equation.
-5 + 5 + 4a = 0 + 5

Combine like terms: -5 + 5 = 0
0 + 4a = 0 + 5
4a = 0 + 5

Combine like terms: 0 + 5 = 5
4a = 5

Divide each side by '4'.
a = 1.25

Simplifying
a = 1.25

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