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Forming Equation from Solution

if 12 subtrac...

Question

if 12 subtracted from seven times a number is equal to five times the sum of the number and 2, find the number

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Solution

Let the number be x , then the equation will be
7x - 12 = 5(x + 2) .

Now you can easily solve it to find the value of x . (ans : x = 11)

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