28-4a=5a-17

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Solution for 28-4a=5a-17 equation:


Simplifying
28 + -4a = 5a + -17

Reorder the terms:
28 + -4a = -17 + 5a

Solving
28 + -4a = -17 + 5a

Solving for variable 'a'.

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

Add '-5a' to each side of the equation.
28 + -4a + -5a = -17 + 5a + -5a

Combine like terms: -4a + -5a = -9a
28 + -9a = -17 + 5a + -5a

Combine like terms: 5a + -5a = 0
28 + -9a = -17 + 0
28 + -9a = -17

Add '-28' to each side of the equation.
28 + -28 + -9a = -17 + -28

Combine like terms: 28 + -28 = 0
0 + -9a = -17 + -28
-9a = -17 + -28

Combine like terms: -17 + -28 = -45
-9a = -45

Divide each side by '-9'.
a = 5

Simplifying
a = 5

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