Question

please help me urgent please if know answers send me if you don't know please leave
.chapter name -linear equation ​

Answer 1

Answer:

In all these question, we have to prove that L.H.S=R.H.S

EXPLANATION:

1) 3x-5y/2=11

3x-5y = 11×2

3x-5y = 22 ---(1)

3x = 22+5y

x = 22+5y/3 ---(2)

now put the value of x in eq. (1)

3× 22+5y/3-5y =22

22+5y-5y = 22

22= 22.

3)9x-7y = 6

3

9x-7y = 6×3

9x-7y = 18---(1)

9x = 18+7y

x = 18+7y ----(2)

9

9×18+7y -7y = 18

9

18+7y-7y = 18

18 = 18

2)-8x = 7y -9

4

-8x = 7y(-9×4)

4

-8x = 7y-36

4

-8x×4 = 7y-36

-32x = 7y-36-----(1)

-32x +36 = 7y

-32x+36 = y------(2)

7

-32 = 7×-32x +36 -36

7

-32 = -32

4) -3 = 7x ----(1)

5

-3×5 = 7x

-15 = x ----(2)

7

-3 = 7 × -15

5 7

-3 = -3

And others are also same.

You can try, these all questions are easy.

All the best✌