All categories

3 years ago

What is the solution to the system of equations x-y=5 and 3x+7y=-5

Mathematics

1 answer:

True [87]3 years ago

6 0

Answer:

Step-by-step explanation:

3(x-y)-3x-7y=3(5)-(-5)

3x-3y-3x-7y=15+5

-10y=20

y=-2, since x-y=5

x-(-2)=5

x+2=5

x=3

So the solution is the point (3,-2)

You might be interested in

There were 685 hot air balloon pilots at a hot air balloon race. There were 1,570 more ground crew

Zielflug [23.3K]

Answer:

2225 I think just do 685+1570

8 0

3 years ago

Who ever answers gets points

MAXImum [283]

Hello! How are you today?

6 0

2 years ago

18 POINTS HELLLPPPpppppppppp

anygoal [31]

26 and 151? Because im confused to death srry if it doesnt help. I tryed.

3 0

3 years ago

17/39 + 11/12 −( 5/12 + 4 /39 )

Nana76 [90]

Answer:

.83333333 or 5/6

Step-by-step explanation:

Make common denominator

204/468 + 429/468 = 633/468 - (195/468 + 48/468)

Simplify: 633/468 - 243/468

390/468 can be further broken down to 5/6 if you divide by a common factor which is 78.

8 0

3 years ago

Read 2 more answers

What is the Graph y=x+4

Marizza181 [45]

Answer:

It is a line with a positive slope and positive intercept

Step-by-step explanation:

If you want it in SF, -x + y = 4

3 0

3 years ago

What is the solution to the system of equations x-y=5 and 3x+7y=-5​

What is the solution to the system of equations x-y=5 and 3x+7y=-5