Question

What is the value of y in the solution to the following system of equations?
5x - 3y = -3
2x - 6y = -6 (2 points)Question 3 options:
1) -1
2) 0
3) 1
4) 2

Answer 1

2x-6y=-6
2x=-6+6y
x=-3+3y
5(-3+3y)-3y=-3
-15+15y-3y=-3
12y=12
y=1

Answer 2

Use the substitution method to solve the following system of equations.
x + y = 3
2x + 2y = 10 (2 points)Question 5 options:
1) (1, 2)
2) (2, 3)
3) No Solutions
4) Infinitely Many Solutions