2a+11=a+15

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Solution for 2a+11=a+15 equation: 


Simplifying
2a + 11 = a + 15

Reorder the terms:
11 + 2a = a + 15

Reorder the terms:
11 + 2a = 15 + a

Solving
11 + 2a = 15 + 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.
11 + 2a + -1a = 15 + a + -1a

Combine like terms: 2a + -1a = 1a
11 + 1a = 15 + a + -1a

Combine like terms: a + -1a = 0
11 + 1a = 15 + 0
11 + 1a = 15

Add '-11' to each side of the equation.
11 + -11 + 1a = 15 + -11

Combine like terms: 11 + -11 = 0
0 + 1a = 15 + -11
1a = 15 + -11

Combine like terms: 15 + -11 = 4
1a = 4

Divide each side by '1'.
a = 4

Simplifying
a = 4

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