Tuesday, 8 September 2015

#Homework help solve the two equations

For #Homework help contact me.

 Solve by elimination:

2x+y=7….(i)


x-7y=5…(ii)


(i)-2*(ii)


2x+y-7-(2x-14y-10)=0


2x+y-7-2x+14y+10=0


15y+3=0


Y=-3/15=-1/5….(iii)


Put value of y in (ii)


x-7(-1/5)=5


x+7/5=5



x=5-7/5=18/5