3+x=8

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Solution for 3+x=8 equation: 


Simplifying
3 + x = 8

Solving
3 + x = 8

Solving for variable 'x'.

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

Add '-3' to each side of the equation.
3 + -3 + x = 8 + -3

Combine like terms: 3 + -3 = 0
0 + x = 8 + -3
x = 8 + -3

Combine like terms: 8 + -3 = 5
x = 5

Simplifying
x = 5

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