39=47-x

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Solution for 39=47-x equation:


Simplifying
39 = 47 + -1x

Solving
39 = 47 + -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.
39 + x = 47 + -1x + x

Combine like terms: -1x + x = 0
39 + x = 47 + 0
39 + x = 47

Add '-39' to each side of the equation.
39 + -39 + x = 47 + -39

Combine like terms: 39 + -39 = 0
0 + x = 47 + -39
x = 47 + -39

Combine like terms: 47 + -39 = 8
x = 8

Simplifying
x = 8

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