Answer:
The first and second
Step-by-step explanation:
The first one is right 12/3=4
The second one is right 12*5=60
The third one is wrong 100-184=-84 not 84
Answer:
Two divided by four is the same as: two times 4, which is eight.
Hope this helps!
ANSWER:
-78-a
= -78-(-29)
= -78+29
= -49
Answer:
C.
Step-by-step explanation:
PEMDAS
-6 x 12p = -72p
-6 x -8n = 48n
48n - 47n = n
2(3x+7)+x=70
mutiply the bracket by 2
(2)(3x)(2)(7)+x= 70
6x+14+x= 70
6x+x+14= 70 ( combine like terms)
7x+14= 70
move 14 to the other side
sign changes from +14 to -14
7x+14-14=70-14
7x= 56
divide both sides by 7
7x/7= 56/7
x=8
Answer: x= 8