Answer:
1) Adding
2) x = 1.5 y = 8
Step-by-step explanation:
1. Which would be a more helpful for solving the system: adding the two equations or subtracting one from the other?
Adding.
Would eliminate the y variable
2.solve the system without graphing, show your reasoning
After adding the equations
8x = 12
Divide both sides by 12
x = 1.5
Substitute into the first equation
2(1.5) + (1/2)y = 7
3 + (1/2)y = 7
(1/2)y = 4
y = 8
