Question

1) Solve the following equations to find the value of the variable

x/2+x/3 - x/4 = 7

2) After 12 years I shall be 3 times as old as I was 4 years ago. Find my present age.

3) Four fifth of a number is more than three fourth of the number by 4. Find the number​

Answer 1

Answer:

1) x=12

Step-by-step explanation:

x/2+x/3-x/4=7

6x +4x-3x /12 =7

6x +4x-3x = 12×7

7x = 84

x=84/7

x=12