Answer:
n = ⅜
Step-by-step explanation:
8x + 7y = 39
4x - 14y = -68
(multiply each term in second equation by -2)
8x + 7y = 39
-8x + 28y = 136
(add both equations)
35y = 175
(divide both sides by 35)
y = 5
(substitute value of y in one of the equations)
8x + 7(5) = 39
8x + 35 = 39
8x = 4
x = 1/2
(x, y) = (1/2, 5)
Answer:
238 degrees
Step-by-step explanation:
Whole circle measures 360 degrees.
Subtract 122 degrees from the whole circle to get 238 degrees.
Move everything to one side, it becomes negative
3x+4-4x-5
=-x-1