Question

Here is a system of linear equations:
equation 1: 2x + 7y = 8
equation 2: 2x + y=14
Solve this system with either the substitution method
OR the elimination method. Type your answer as an
ordered pair, then explain how you found the solution to
the system.

Answer 1

Answer:

X=7.5 y=-1

Step-by-step explanation:

$2x + 7y = 8 \\ 2x + y = 14$

I multiplied the equation with - 1 to than I sum it with the second one to get rid of x

$- 6y = 6 \\ y = - 1$

Now you put Y in on of the equation and you get x.

$2x - 1 = 14 \\ 2x = 15 \\ x = 7.5$