When you're looking for the changes between the two, it is best to simply look for the differences. In this case, the first equation has a positive 4 included, whereas, the second doesn't. When you've got a positive number, you always subtract it away from the otherside, as you always do the opposite to what the operation is.This is the equation solved.
Hope this helps :)
Answer: C hope this helps
Step-by-step explanation:
Answer:
Step-by-step explanation:
To evaluate substitute x = into f(x)
f() = - × + 5
= - + =
Answer:
m +2m +(2m -6) = 19
Step-by-step explanation:
m = number of books sold on Monday.
2m = number of books sold on Tuesday, twice as many as Monday.
2m -6 = number of books sold on Wednesday, 6 fewer than Tuesday.
The total number of books sold on the three days gives the equation you're looking for:
m +2m +(2m -6) = 19
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<em>Additional comment</em>
Solving this gives ...
5m = 25 . . . . add 6
m = 5 . . . . . divide by 5
5, 10, and 4 books were sold on the three days.