wyattschroer01
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The difference of two numbers is 8. When twice the first number is added to three times the second number, the result is 51. What are the two numbers?

A.
12 and 4
B.
15 and 7
C.
20 and 12
D.
23 and 15

Respuesta :

faresharun51
a-b=8
2a+3b=51

2a-2b=16
2a+3b=51


Subtract both
-5b=-35

b is 7 and a is 15
amna04352

Answer:

B. 15 and 7

Step-by-step explanation:

Let x and y be the two numbers

x - y = 8

x = y + 8

2x + 3y = 51

2y + 16 + 3y = 51

5y = 35

y = 7

x = 15

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