2a-20-10=2a-2a

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Solution for 2a-20-10=2a-2a equation:


Simplifying
2a + -20 + -10 = 2a + -2a

Reorder the terms:
-20 + -10 + 2a = 2a + -2a

Combine like terms: -20 + -10 = -30
-30 + 2a = 2a + -2a

Combine like terms: 2a + -2a = 0
-30 + 2a = 0

Solving
-30 + 2a = 0

Solving for variable 'a'.

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

Add '30' to each side of the equation.
-30 + 30 + 2a = 0 + 30

Combine like terms: -30 + 30 = 0
0 + 2a = 0 + 30
2a = 0 + 30

Combine like terms: 0 + 30 = 30
2a = 30

Divide each side by '2'.
a = 15

Simplifying
a = 15

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