Answer:
2 2/5
Step-by-step explanation:
5/6 x-4 = -2
Add 4 to each side
5/6 x-4+4 = -2+4
5/6 x = 2
Multiply by 6/5 to isolate x
6/5 *5/6 x = 6/5 *2
x = 12/5
Changing this from an improper fraction
5 goes into 12 2 times with 2 left over
x = 2 2/5
Answer:
+4 and -4
Step-by-step explanation:
(x^2)-14=2
(x^2)-14-2=0
(x^2)-16=0
(x-4)(x+4)=0 = True
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(3x + 2x = 2400)
(5x = 2400)
(x = 480)
(480 were sold for each)
