Q8:
Solve the simultaneous equations and .
Q9:
Using elimination, solve the simultaneous equations
Q11:
Using elimination, solve the simultaneous equations
Q12:
Using elimination, solve the simultaneous equations
Q13:
Using elimination, solve the simultaneous equations
Q14:
Using elimination, solve the simultaneous equations
Q15:
Using elimination, solve the simultaneous equations
Q16:
Using elimination, solve the simultaneous equations
Q17:
Using elimination, solve the simultaneous equations
Q18:
Given that , what is ?
Q19:
Find two numbers with a sum of 69 and a difference of 3.
Q20:
Solve the simultaneous equations and .