Question

class 7th chapter: linear equations with one variable

Answer 1

Answer:

1)=2x+3/3=x-1

2x+3=(x-1)3

2x+3=3x-3

2x-3x=-3-3

-1x=-6

x=-6/-1

x=6

2)= 5(2x-3)-3(3x-7)=7

10x-15-9x+21=7

1x+6=7

1x=7-6

1x=1

x=1/1

x=1

3)=2y/3 -y/6=1/2

(4y-y) /6=1/2

4y-y=1/2X6

3y=3

y=3/3

y=1

Answer 2

Given :    (2x + 3)/3   = x - 1

5(2x - 3) - 3(3x - 7) = 7

2y/3  -  y/6   = 1/2

To Find : Solve the equations

Solution:

 (2x + 3)/3   = x - 1

=> 2x + 3 = 3x - 3

=> 3 + 3 = 3x - 2x

=> 6 = x

=> x = 6

5(2x - 3) - 3(3x - 7) = 7

=> 10x - 15 - 9x + 21  = 7

=> x  + 6  = 7

=> x = 7 - 6

=> x = 1

2y/3  -  y/6   = 1/2

=> 4y  - y  = 3

=> 3y = 3

=> y = 1

Learn More:

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