Question

solve it fastly and with explanation ​

Answer 1

Step-by-step explanation:

1. 2x-3=7then,

2x =10

x=5

2. 5x+3 is not a linear equation

3. 2y+9=4 then,

2y= -5

y= -5/2

4. x/3+5/2= -3/2

x/3= -3/2-5/2

x/3= -8/2

x/3= -4

x= -12

5. 15/4-7x=9

-7x=9-15/4

-7x= 21/4

x= -3/4

6. x-2 =7

x=9

7. y+3=10

y=7

8. 6=z+2

z=4

9. 6x=12

x=2

10. x/5=10

x=50

11. 2x/3=18

x/3=9

x=27

12. let the present age of Sahil be x

the present age of sahil's mother be. 3x

then, after 5 years,

Sahil age=x+5

sahil's mother age=3x+5

the sum of their ages =4x+10

66=4x+10

56=4x

x=14

the age of Sahil (x)=14