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The sum of seven times a number—
PLEASE HELP!

The sum of seven times a number— PLEASE HELP!-example-1

2 Answers

4 votes

Answer:


4\\6

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

User Chris Schmich
by
8.4k points
4 votes

Answer:

x = 6

y = 4

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

User Danblack
by
7.7k points

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