20-a=-10a-2

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


Simplifying
20 + -1a = -10a + -2

Reorder the terms:
20 + -1a = -2 + -10a

Solving
20 + -1a = -2 + -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.
20 + -1a + 10a = -2 + -10a + 10a

Combine like terms: -1a + 10a = 9a
20 + 9a = -2 + -10a + 10a

Combine like terms: -10a + 10a = 0
20 + 9a = -2 + 0
20 + 9a = -2

Add '-20' to each side of the equation.
20 + -20 + 9a = -2 + -20

Combine like terms: 20 + -20 = 0
0 + 9a = -2 + -20
9a = -2 + -20

Combine like terms: -2 + -20 = -22
9a = -22

Divide each side by '9'.
a = -2.444444444

Simplifying
a = -2.444444444

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