Question

12 subtracted from seven times a number is equal to five some of the number and 2find the number​

Answer 1

Answer:

The number is 11

Step-by-step explanation:

Let the number be 'x'

7x-12=5(x+2)

7x-12=5x+10

7x-5x=10+12

2x=22

x=22÷2

x=11

The number is 11

Answer 2

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* Let the two numbers be x and y.

Let the two numbers be x and y. x+y = 7 ----- (1)

7 ----- (1)x−y = 1 ----- (2)

1 ----- (2) Adding equation (1) and (2), we get

1 ----- (2) Adding equation (1) and (2), we getx+y = 7

7x−y = 1

1_________

1_________2x = 8

8x = 28 = 4

4Substituting the value x in equation (1), we get

4Substituting the value x in equation (1), we get 4 + y = 7

7y = 7 −4

−4y = 3

3Therefore, x = 4 and y = 3

3 Hence, the two numbers are 4 and 3.

3 Hence, the two numbers are 4 and 3.Was this answer helpful?

3 Hence, the two numbers are 4 and 3.Was this answer helpful?0

3 Hence, the two numbers are 4 and 3.Was this answer helpful?00