Question

21. Find the value of x' + 2xy + y when x = 2 and y=-1.
bc
3a²bc
22. Find the value of
26-30
when a = -2, b = 3 and c = -5.
1
y
23. Given that 5x = y2 -
find the value of x when y=-3 and z=-1
2
2
1
x + 3y
24. Given that
5x - Ty
find the value of x when y=-3.
4.​

Answer 1

Answer:

some problems are solved only because of not clearance in your problems