Question

1. what is the value of y in the solution to the system of equations? x + y = 10 -x + 2y = 8 o 4 o 8 o 2 o 6

Explanation:

Step1: Add the two equations

Add $x + y=10$ and $-x + 2y=8$.
$(x + y)+(-x + 2y)=10 + 8$
$x - x+y + 2y=18$
$3y=18$

Step2: Solve for y

Divide both sides of $3y = 18$ by 3.
$y=\frac{18}{3}=6$

Answer:

6