Find value of 8x+3y when...

Summer 2017 P2 Q7

substitute x=-3, y=10 into...

Summer 2017 P1 Q11b

Simplify (just 1 variable)

Summer 2017 P1 Q7b

simplify (1 variable with add subtract)

Nov 2018 P2 Q7b

Sub values into expression

Nov 2018 P1 Q14c

Simplify (2 variables)

Nov 2018 P1 Q14a