Question

При каком значении P решением уравнения -px+2y+p=0 является пара чисел -1 2если не сложно решите ещё и это)

Answer 1

-px+2y+p=0
-p·(-1)+2·2+p=0
2p+4=0
2p=-4
p=-2
Ответ:-2

Answer 2

Solution for the Equation -px + 2y + p = 0

To find the values of p for which the pair of numbers (-1, 2) is a solution to the equation -px + 2y + p = 0, we can substitute the given values of x and y into the equation and solve for p.

Substituting x = -1 and y = 2 into the equation, we get: -(-1)p + 2(2) + p = 0 p + 4 + p = 0 2p + 4 = 0 2p = -4 p = -2

Therefore, the value of p for which the pair of numbers (-1, 2) is a solution to the equation -px + 2y + p = 0 is -2.