Answer:
(-4,-7)
(4,7)
(-4,-5)
(1,-1)
Step-by-step explanation:
21x + 28 = 156 - 2
21x = 154 - 28
21x/21 = 126/21
X = 6
Answer:
A
Step-by-step explanation:
you have to make sure that they have the same denominator so
31/4 -4 2/4
= - 1 1/4
hope this helped you hon