28-3a=5a-4

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Solution for 28-3a=5a-4 equation:


Simplifying
28 + -3a = 5a + -4

Reorder the terms:
28 + -3a = -4 + 5a

Solving
28 + -3a = -4 + 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 + -3a + -5a = -4 + 5a + -5a

Combine like terms: -3a + -5a = -8a
28 + -8a = -4 + 5a + -5a

Combine like terms: 5a + -5a = 0
28 + -8a = -4 + 0
28 + -8a = -4

Add '-28' to each side of the equation.
28 + -28 + -8a = -4 + -28

Combine like terms: 28 + -28 = 0
0 + -8a = -4 + -28
-8a = -4 + -28

Combine like terms: -4 + -28 = -32
-8a = -32

Divide each side by '-8'.
a = 4

Simplifying
a = 4

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