20a-2=8+21a

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Solution for 20a-2=8+21a equation:


Simplifying
20a + -2 = 8 + 21a

Reorder the terms:
-2 + 20a = 8 + 21a

Solving
-2 + 20a = 8 + 21a

Solving for variable 'a'.

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

Add '-21a' to each side of the equation.
-2 + 20a + -21a = 8 + 21a + -21a

Combine like terms: 20a + -21a = -1a
-2 + -1a = 8 + 21a + -21a

Combine like terms: 21a + -21a = 0
-2 + -1a = 8 + 0
-2 + -1a = 8

Add '2' to each side of the equation.
-2 + 2 + -1a = 8 + 2

Combine like terms: -2 + 2 = 0
0 + -1a = 8 + 2
-1a = 8 + 2

Combine like terms: 8 + 2 = 10
-1a = 10

Divide each side by '-1'.
a = -10

Simplifying
a = -10

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