Answer:
56
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
x=√7
squaring
x²=7
Answer:
x=21-5x4
x=21-20
x=1
Step-by-step explanation:
12x - 11y = 75 . . . . . . . . (1)
5x - 11y = 89 . . . . . . . . (2)
(1) - (2): 7x = -14
x = -2
From (1): 12(-2) - 11y = 75
-24 - 11y = 75
-11y = 75 + 24 = 99
y = -9
Therefore, x = -2 and y = -9