33a+16-28a=21

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Solution for 33a+16-28a=21 equation:


Simplifying
33a + 16 + -28a = 21

Reorder the terms:
16 + 33a + -28a = 21

Combine like terms: 33a + -28a = 5a
16 + 5a = 21

Solving
16 + 5a = 21

Solving for variable 'a'.

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

Add '-16' to each side of the equation.
16 + -16 + 5a = 21 + -16

Combine like terms: 16 + -16 = 0
0 + 5a = 21 + -16
5a = 21 + -16

Combine like terms: 21 + -16 = 5
5a = 5

Divide each side by '5'.
a = 1

Simplifying
a = 1

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