9a+28=4a

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Solution for 9a+28=4a equation:


Simplifying
9a + 28 = 4a

Reorder the terms:
28 + 9a = 4a

Solving
28 + 9a = 4a

Solving for variable 'a'.

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

Add '-4a' to each side of the equation.
28 + 9a + -4a = 4a + -4a

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

Combine like terms: 4a + -4a = 0
28 + 5a = 0

Add '-28' to each side of the equation.
28 + -28 + 5a = 0 + -28

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

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

Divide each side by '5'.
a = -5.6

Simplifying
a = -5.6

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