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Challenge 391: Equation Enquiry
Three equations, three unknowns - solve to find x, y and z!
Find the values of x, y and z for which all three of these equations are satisfied.
(I) x2 - 6y + 14 = 0
(II) y2 + 2z - 7 = 0
(III) z2 + 4x + 7 = 0
Three equations, three unknowns - solve to find x, y and z!
Find the values of x, y and z for which all three of these equations are satisfied.
(I) x2 - 6y + 14 = 0
(II) y2 + 2z - 7 = 0
(III) z2 + 4x + 7 = 0