pr+qs=4

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Solution for pr+qs=4 equation: 


Simplifying
pr + qs = 4

Solving
pr + qs = 4

Solving for variable 'p'.

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

Add '-1qs' to each side of the equation.
pr + qs + -1qs = 4 + -1qs

Combine like terms: qs + -1qs = 0
pr + 0 = 4 + -1qs
pr = 4 + -1qs

Divide each side by 'r'.
p = 4r-1 + -1qr-1s

Simplifying
p = 4r-1 + -1qr-1s

Reorder the terms:
p = -1qr-1s + 4r-1

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