Exercise 2.4
Maria thinks of a number and subtract 5/2 from it.She multiplies the result by 8.The result now obtained is 3times the same number she thought of.What is the number?
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Answer:
Therefore, the number is 4.
Step-by-step explanation:
Lets assume the number to be x.
First, lets break the question step-by-step for easy understanding.
Step 1: 5/2 is subtracted from x.
Step 2: The answer in Step 1 is multiplied by 8.
Step 3: The answer derived in Step 2 is 3 times of x.
Hence, the equation could be formed as follows:
(x-5/2)*8=3x
(2x-5)*4=3x
8x-20=3x
8x-3x=20
5x=20
x=20/5
x=4
Therefore, the number is 4.
Hope this helpfull for you
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