Question 163340
P=3L
equation;
30L+50P=18360 
Substitute P=3L;
30L+50(3L)=18360
multiply and collect like terms;
30L+150L=18360
180L=18360
divide each side by 180;
L=102
Multiply 3(102) to find what P equals;
P=3(102)
P=306
To check our answer;
30(102)+50(306)=18360
3060+15300=18360 
Snookers lumber must produce and sell 102 units of lumber and 306 units of plywood to make a profit of $18360.
:)