4a+23=20-2a

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Solution for 4a+23=20-2a equation:


Simplifying
4a + 23 = 20 + -2a

Reorder the terms:
23 + 4a = 20 + -2a

Solving
23 + 4a = 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.
23 + 4a + 2a = 20 + -2a + 2a

Combine like terms: 4a + 2a = 6a
23 + 6a = 20 + -2a + 2a

Combine like terms: -2a + 2a = 0
23 + 6a = 20 + 0
23 + 6a = 20

Add '-23' to each side of the equation.
23 + -23 + 6a = 20 + -23

Combine like terms: 23 + -23 = 0
0 + 6a = 20 + -23
6a = 20 + -23

Combine like terms: 20 + -23 = -3
6a = -3

Divide each side by '6'.
a = -0.5

Simplifying
a = -0.5

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