s-t=4

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Solution for s-t=4 equation: 


Simplifying
s + -1t = 4

Solving
s + -1t = 4

Solving for variable 's'.

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

Add 't' to each side of the equation.
s + -1t + t = 4 + t

Combine like terms: -1t + t = 0
s + 0 = 4 + t
s = 4 + t

Simplifying
s = 4 + t

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