Answer:
B. Add the first equation to the second equation.
Step-by-step explanation:
I just took the test
Add the two equations together to eliminate y
X+y=3
4x-y=7
I would use elimination since one equation has +y and one equation has -y
Add the two equations together
-------------------
5x = 10
Your answer is correct.
y = 3x-2x∧2+5x∧3
When we replace x with value 3 we get
y = 3 * 3 - 2 * 3∧2 + 5 * 3∧3 => y = 9-2*9+5*27 => y = 9-18+135 => y = 126
good luck!!!
