Question

(i)After 12 years I shall be 3 times as old as I was 4 years ago.

Find my present age. 5

(ii)Verify that x = 4 is a root of the equation 2x -3 = 5



please give me perfect answer.
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Answer 1

Answer:

(i) x=12

Step-by-step explanation:

let the present age be x

by the condition,

x+12 = 3(x-4)

x+12 = 3x-12

3x-x = 12+12

2x = 24

x = 24/2

x = 12

therefore,the present age is 12 years

(ii) first find the root of the given equation

2x-3=5

2x-3-5=0

2x-8=0

2(x-4)=0

x-4=0

x=4

It is verified that x=4 is a root of the equation 2x-3=5