21a+11=10a

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Solution for 21a+11=10a equation:


Simplifying
21a + 11 = 10a

Reorder the terms:
11 + 21a = 10a

Solving
11 + 21a = 10a

Solving for variable 'a'.

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

Add '-10a' to each side of the equation.
11 + 21a + -10a = 10a + -10a

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

Combine like terms: 10a + -10a = 0
11 + 11a = 0

Add '-11' to each side of the equation.
11 + -11 + 11a = 0 + -11

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

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

Divide each side by '11'.
a = -1

Simplifying
a = -1

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