21a-16=5a-16

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Solution for 21a-16=5a-16 equation:


Simplifying
21a + -16 = 5a + -16

Reorder the terms:
-16 + 21a = 5a + -16

Reorder the terms:
-16 + 21a = -16 + 5a

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

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

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

Solving
21a = 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.
21a + -5a = 5a + -5a

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

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

Divide each side by '16'.
a = 0

Simplifying
a = 0

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