The first step to this is to subtract 7 from both sides. The +7 and -7 cancel each other out leaving you with 3x=6 then divide by 3 on each side giving you x=2.
Five plus four x is equal to 2x-9
Answer:
$9
Step-by-step explanation:
divide 45 and 5, you get 9
Answer:
a) eight and seven ninths minus three and four sixths
Step-by-step explanation:
The required result is 
a)

b)

c)

d)

Answer:
B. 6 inches
Step-by-step explanation:
To find how wide it is, multiply the length by 3/4
8(3/4)
= 6
The width of the rectangle in 6 inches.
So, the correct answer is B. 6 inches