Answer:
<u>x</u><u> </u><u>is</u><u> </u><u>3</u>
Step-by-step explanation:
Answer:
1. x = 30
REC = 130
Step-by-step explanation:
2x + 70 = 4x + 10
60 = 2x
x = 30
you try the others
Good luck :D
The answer is 140 because you have to divid lol idek I don’t speak espaniol
Answer:
3. Simplifying
4 multiplication property of equality.
5. simplifying
Step-by-step explanation:
y/2 -21+21 = -15+21
To get to the next step we add -21+21 on the left and -15+21 on the right
We are simplifying on each side
Then we multiply by 2 on each side for the next step
We use the multiplication property of equality.
Finally we simplify in the last step
The left term is (5x)³.
The right term is 10³.
So, you can use the formula for the factorization of the difference of cubes.
... a³ - b³ = (a-b)(a² +ab +b²)
Here, you have a=5x, b=10, so the factorization is
... 125x³ -1000 = (5x-10)(25x² +50x +100)
