7.8. Simultaneous equations with 3 unknowns + no solution
N7. Equations and inequalities

Question

Given the simultaneous equations

2 $x$ – $y$ = 11
5 $y$ – 2 $qx$ + 7 = 0

(a) Show that $x$ = $\frac{24}{5 - q}$ [2]

(b) State the value of q if there is no solution for the pair of simultaneous equations. [1]

Solution

In