a+10=2a-20

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


Simplifying
a + 10 = 2a + -20

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

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

Solving
10 + a = -20 + 2a

Solving for variable 'a'.

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

Add '-2a' to each side of the equation.
10 + a + -2a = -20 + 2a + -2a

Combine like terms: a + -2a = -1a
10 + -1a = -20 + 2a + -2a

Combine like terms: 2a + -2a = 0
10 + -1a = -20 + 0
10 + -1a = -20

Add '-10' to each side of the equation.
10 + -10 + -1a = -20 + -10

Combine like terms: 10 + -10 = 0
0 + -1a = -20 + -10
-1a = -20 + -10

Combine like terms: -20 + -10 = -30
-1a = -30

Divide each side by '-1'.
a = 30

Simplifying
a = 30

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