You can't remove a variable but you can separate the variable from the rest of the equation. If you are adding for example 64+x=88 you would subtract the 64 from 88. You will get the value of x. For anything else, you would do the opposite of whatever you are doing. Multiply if you are dividing, add if you are subtracting and hence forth. I hope this helped.
Answer:
A! The polygon was dilated, then reflection vertically!
Step-by-step answer:
The intersection of two sets A & B is represented by the set (collection of members) common to both sets.
A={1, 5, 7, 9, 14}
B={2, 5, 6, 8, 14, 17}
By examining the two sets, we see that the set common to both (intersection) are the numbers in bold.
Answer:
The answer is c
Step-by-step explanation:
You would make it into an equation then solve it after creating that equation. When you hear the word "each" that should give you a clue or a sense that should be a variable. So in this case it would be:
17x+21=157
Then you would solve it from there. Once you find x you'll know how many workbooks Norwood Middle School purchased.