Question

Plzz do 1 question by substitute elimination method​

Answer 1

Answer:

x+y=5...............(1)

3x+2y=8..........(2)

multiply equation (1) by 2

2x+2y=10........(3)

subtract equation (2)from (3)

-x=2

ie. x= -2

put x= -2 in equation (1)

-2 +y=5

y=5+2

y=7

value of x= -2 & y=7

Answer 2

here's your answer

First of all, in this question we have to find which of these pair of linear equation has many solution

so here's your answer

x-3y-3=0

3x-9y-2=0

a1/a2 = 1/3

b1/b2 = -3/-9 = 1/3

c1/c2 = -3/-2

so here the lines are parallel to each other. therefore they will not have infinite solution so we cant find any solution for this question

Hope it helps you

please mark as brainliest

if you want any another solution tell in the comments I will edit this one.