Answer:
and 
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Step-by-step explanation:
Given




Required
Equations with
as a solution

Divide both sides by -2

Add 4 to both sides


Divide both sides by 3


Multiply both sides by 2

Subtract 2 from both sides


Divide both sides by 1


Open bracket

Collect like terms


Divide both sides by -7


Subtract 6 from both sides


Multiply both sides by 3

Add 12 to both sides


Divide both sides by 4

<em></em>
<em> and </em>
<em> have </em>
<em> has a solution</em>
Answer:
76 kilometres = 47.224211 miles
We have been given that a librarian noticed that 60% of seventh graders checked out fantasy books. We are asked to find the number of seventh graders from 240 seventh graders, who would checkout fantasy books.
To solve our given problem, we need to find 60% of 240.



Therefore, 144 seventh graders would checkout fantasy books.
Answer:
4/21 kilometers per hour
Step-by-step explanation:
Since the tortoise traveled 1/6 kilometers in 7/8 hour we can divide 1/6 by 7 because 7/8 divided by 7 is 1/8 and get 1/42.Once we've done this we can then multiply 1/6 by 8 since 1/8 x 8= 8/8 or 1 hour and get 8/48 which simplifies to 4/21.
#12:
p= 2.8y+2.2y+2x+5x+4x
p= 5y+11x
#14:
p= 2h+2h+4j+4j+4j+4j
p= 4h+16j