Question

2x+y=-7y
Y=x+10
Solve the system of equations below

Answer 1

X would equal -15 and y would equal 25 so basically (-15,25)

Answer 2

The solution of the system of equations is (8, 18)

Let's solve the system of equations:

Here we have the system of linear equations:

2x+y=-7y

Y=x+10

First, let's simplify the first equation:

2x+y=-7y

2x = -7y - y

2x = -8y

Now we can replace the second equation (y = x + 10) in there, we will get:

2x = -8*(x + 10)

2x = -8x - 80

2x + 8x = 80

10x = 80

x = 80/10

x = 8

To get the value of y, evaluate the second equation in x = 8

y = 8 + 10

y = 18

The solution is (8, 18)