3a-19=4+a

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Solution for 3a-19=4+a equation:


Simplifying
3a + -19 = 4 + a

Reorder the terms:
-19 + 3a = 4 + a

Solving
-19 + 3a = 4 + a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
-19 + 3a + -1a = 4 + a + -1a

Combine like terms: 3a + -1a = 2a
-19 + 2a = 4 + a + -1a

Combine like terms: a + -1a = 0
-19 + 2a = 4 + 0
-19 + 2a = 4

Add '19' to each side of the equation.
-19 + 19 + 2a = 4 + 19

Combine like terms: -19 + 19 = 0
0 + 2a = 4 + 19
2a = 4 + 19

Combine like terms: 4 + 19 = 23
2a = 23

Divide each side by '2'.
a = 11.5

Simplifying
a = 11.5

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