Answer: Y=104
Step-by-step explanation: Angle 1 is 2x which means it is 76, 180-76 gives you 104
10x + 19y = -11
19y = -10x - 11
y = -10/19x - 11/19 <===
Answer: 8
Step-by-step explanation:
8/2 = 4 + 8 = 12
Answer: A
Step-by-step explanation:
-2x + 15y = -24
2x + 9y = 24
Adding to eliminate x:-
24y = 0
y = 0
Substitute for y in the first equation:-
-2x + 15(0) = -24
-2x = -24
x = -24/-2 = 12
Solution is x = 12 , y = 0