(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:
(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
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