3-2x-20=4

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Solution for 3-2x-20=4 equation:


Simplifying
3 + -2x + -20 = 4

Reorder the terms:
3 + -20 + -2x = 4

Combine like terms: 3 + -20 = -17
-17 + -2x = 4

Solving
-17 + -2x = 4

Solving for variable 'x'.

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

Add '17' to each side of the equation.
-17 + 17 + -2x = 4 + 17

Combine like terms: -17 + 17 = 0
0 + -2x = 4 + 17
-2x = 4 + 17

Combine like terms: 4 + 17 = 21
-2x = 21

Divide each side by '-2'.
x = -10.5

Simplifying
x = -10.5

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