Question

The sum of seven times a number— PLEASE HELP!

Answer 1

Answer:

$4\\6$

Step-by-step explanation:

$7x+3y=54\\x=y+2$

$7(y+2)+3y=54\\7y+14+3y=54\\10y+14=54\\10y=40\\y=4$

$x=y+2\\x=4+2\\x=6$

Answer 2

Answer:

x = 6

y = 4

Step-by-step explanation:

Let the two numbers be x and y

Condition 1:

7x+3y = 54 -----------(1)

Condition 2:

x = 2+y -----------------(2)

Putting (2) in (1)

=> 7(y+2)+3y = 54

=> 7y+14+3y = 54

=> 10y = 54-14

=> 10y = 40

Dividing both sides by 10

=> y = 4

Now putting y = 4 in eq(2)

=> x = 2+4

=> x = 6