3-20=x+4

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Solution for 3-20=x+4 equation:


Simplifying
3 + -20 = x + 4

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

Reorder the terms:
-17 = 4 + x

Solving
-17 = 4 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-17 + -1x = 4 + x + -1x

Combine like terms: x + -1x = 0
-17 + -1x = 4 + 0
-17 + -1x = 4

Add '17' to each side of the equation.
-17 + 17 + -1x = 4 + 17

Combine like terms: -17 + 17 = 0
0 + -1x = 4 + 17
-1x = 4 + 17

Combine like terms: 4 + 17 = 21
-1x = 21

Divide each side by '-1'.
x = -21

Simplifying
x = -21

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