a+20=2a-50

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Solution for a+20=2a-50 equation:


Simplifying
a + 20 = 2a + -50

Reorder the terms:
20 + a = 2a + -50

Reorder the terms:
20 + a = -50 + 2a

Solving
20 + a = -50 + 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.
20 + a + -2a = -50 + 2a + -2a

Combine like terms: a + -2a = -1a
20 + -1a = -50 + 2a + -2a

Combine like terms: 2a + -2a = 0
20 + -1a = -50 + 0
20 + -1a = -50

Add '-20' to each side of the equation.
20 + -20 + -1a = -50 + -20

Combine like terms: 20 + -20 = 0
0 + -1a = -50 + -20
-1a = -50 + -20

Combine like terms: -50 + -20 = -70
-1a = -70

Divide each side by '-1'.
a = 70

Simplifying
a = 70

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