Question

If 12 subtracted from seven times a no. Is equal to five times the sum of the no. And 2, find the no.

Answer 1

Answer:

Let the number be x.

12 subtracted from seven times a no. Is equal to five times the sum of the no. and 2.

Framing the equation in accordance to the question:

7x-12=5(x+2) {12 subtracted 'from' 7 times a number, thus 7x should come first, Thus read the question carefully}

7x-12=5x+10

Transpose the constants to RHS, variables to LHS.

7x-5x=10+12

2x=22

x=22÷2

x=11.

HOPE THIS HELPS :D

Answer 2

Let the number be x

ATQ:-

7x-12=5(x+2)

=>7x-12=5x+10

=>7x-5x=10+12

=>2x=22

=>x=11

Thus, the number is 11.

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Hope it helps you:-)