Answer:
It means that the two equations are equal to each other and that the answer is correct.
Step-by-step explanation:
-x+4y= -17
-x= -17-4y multiply everything by -1
x=17+4y
-6X-2y=2
-6(17+4y) - 2y=2
-102-24y-2y=2
-26y=2+102
-26y=104
y= -104/26
y= -4
x=17+4y
x=17+4•4
x=17+16
x=33
12x +50 = 170
-50 -50
12x=120
/12 /12
x=10
Ten packets were purchased
Answer:
(-1/4)³
Step-by-step explanation:
(−1/4)⋅(−1/4)⋅(−1/4)
= (-1/4)³
