19=21a-13-5a

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Solution for 19=21a-13-5a equation:


Simplifying
19 = 21a + -13 + -5a

Reorder the terms:
19 = -13 + 21a + -5a

Combine like terms: 21a + -5a = 16a
19 = -13 + 16a

Solving
19 = -13 + 16a

Solving for variable 'a'.

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

Add '-16a' to each side of the equation.
19 + -16a = -13 + 16a + -16a

Combine like terms: 16a + -16a = 0
19 + -16a = -13 + 0
19 + -16a = -13

Add '-19' to each side of the equation.
19 + -19 + -16a = -13 + -19

Combine like terms: 19 + -19 = 0
0 + -16a = -13 + -19
-16a = -13 + -19

Combine like terms: -13 + -19 = -32
-16a = -32

Divide each side by '-16'.
a = 2

Simplifying
a = 2

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