4a-5-2a-9=28

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Solution for 4a-5-2a-9=28 equation:


Simplifying
4a + -5 + -2a + -9 = 28

Reorder the terms:
-5 + -9 + 4a + -2a = 28

Combine like terms: -5 + -9 = -14
-14 + 4a + -2a = 28

Combine like terms: 4a + -2a = 2a
-14 + 2a = 28

Solving
-14 + 2a = 28

Solving for variable 'a'.

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

Add '14' to each side of the equation.
-14 + 14 + 2a = 28 + 14

Combine like terms: -14 + 14 = 0
0 + 2a = 28 + 14
2a = 28 + 14

Combine like terms: 28 + 14 = 42
2a = 42

Divide each side by '2'.
a = 21

Simplifying
a = 21

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