Answer:
2.) (3,-2)
3.) (5,3)
4.) *Still trying to solve*
Step-by-step explanation:
2.)
Step 1.
5x + 4y = 7
3x - 4y = 17
+ ------------------
8x = 24
8 8
x = 3
Step 2.
5x + 4y = 7
5(3) + 4y = 7
15 + 4y = 7
-15 -15
4y = -8
4 4
y = -2
Final Answer: (3,-2)
3.
Step 1.
4x + 5y = 35
x = 2y - 1
4(2y - 1) + 5y = 35
8y - 4 + 5y = 35
13y - 4 = 35
+4 +4
13y = 39
13 13
y = 3
Step 2.
x = 2y - 1
x = 2(3) - 1
x = 6 - 1
x = 5
Final Answer: (5,3)
I do apologize that I couldn't find the solution to 4.) if I do I will edit this answer
I hope this helps!
