20+7=4-x

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Solution for 20+7=4-x equation:


Simplifying
20 + 7 = 4 + -1x

Combine like terms: 20 + 7 = 27
27 = 4 + -1x

Solving
27 = 4 + -1x

Solving for variable 'x'.

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

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

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

Add '-27' to each side of the equation.
27 + -27 + x = 4 + -27

Combine like terms: 27 + -27 = 0
0 + x = 4 + -27
x = 4 + -27

Combine like terms: 4 + -27 = -23
x = -23

Simplifying
x = -23

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