Question

2.3x+y=8,5x+y=10
3.x+1/2=4,x/3+2y=5
4.3a+5b=20,a+b=2
5.a+b=3,2a-5b=7

Answer 1

Answer:

2. x=1, y=5

4.a=-5, b=7

5.a=22/7, b= -1/7

qn 3 is not clear

is that (x+1) / 2 or x+(1/2)??