a+10=21

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Solution for a+10=21 equation: 


Simplifying
a + 10 = 21

Reorder the terms:
10 + a = 21

Solving
10 + a = 21

Solving for variable 'a'.

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

Add '-10' to each side of the equation.
10 + -10 + a = 21 + -10

Combine like terms: 10 + -10 = 0
0 + a = 21 + -10
a = 21 + -10

Combine like terms: 21 + -10 = 11
a = 11

Simplifying
a = 11

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