Nonayreslie6idn
Answered

Makakuha ng maliwanag na mga sagot sa iyong mga tanong sa IDNStudy.com. Anuman ang kahirapan ng iyong mga tanong, ang aming komunidad ay may mga sagot na kailangan mo.

the second of three numbers is 3 times the first. the third number is 2 more than the second number.seven less than twice the second is the same as 12 more than the third. what are the three numbers?I need rush answer po thank you​

Sagot :

Answer: 7, 21, and 23

Step-by-step explanation:

Let the 3 numbers be x (1st number), y (2nd number), and z (3rd number).

The 2nd number is 3 times the first:
y=3x (Eq. 1)

The 3rd number is 2 more than the 2nd:
z= y+2 (Eq. 2)

7 less than twice the 2nd is equal to 12 more than the 3rd:
2y-7=z+12 (Eq. 3)

Rewrite the Eq. 3 by substituting z=y+2 and solve for y:
2y-7=y+2+12
y=21

Input y=21 into Eq. 1 and Eq. 2 to get x and z:
In Eq. 1:
21= 3x
x= 7

In Eq. 2:
z= 21+2
z= 23