If (1,p) is a solution of the simultaneous equations
12x(square) - 5y(square) = 7
2p(square)x - 5y = 7
find the value of p and the other solution.
Hello, Ilsa!
. . . . .
Substitute into [1]: .
Substitute into [2]: .
. . . . . . . . . . . . . .
. . One solution is
The two equations become: .
Substitute [4] into [3]: .
. . which simplifies to: .
. . which factors: .
. . and has roots: .
Substitute into [4]: .
The solutions are: .