Question 1
DB question no.: 1
Points: 1
Use elimination to solve the system of equations:
-v + w = 7
v + w = 1
-v + w = 7
v + w = 1
Explanation
Adding the two equations eliminates v: $(-v + v) + (w + w) = 7 + 1 \Rightarrow 2w = 8 \Rightarrow w = 4$. Substituting w = 4 into v + w = 1 gives $v + 4 = 1 \Rightarrow v = -3$. The solution is (-3, 4).