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
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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
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