Solve the following pairs of simultaneous equations by elimination method
i.2x+y=10
ii. 3x+y=6
3x-2y=1 5x+y=8
solve the following simultaneous equations by graphical methods
i.2x-y=1 ii. x+y=3
X+y=2 x-y=1
b) Solve the following inequalities
i) 5x>12
ii) 6x+4≥2
iii) 2x-5≤1/2