Hello there!
Evaluate
-3b² + 25
For b = 7
-3(7)² + 25
-3(49) + 25
-147 + 25
= -122
I hope that helps!
Answer:
Step-by-step explanation:
Yes. The commutative property of addition (as well as the commutative property of multiplication) applies to all real numbers, and even to complex numbers. As an example (for integers):
5 + (-3) = (-3) + 5
1 and 16, 2 and 8, 4 and 4.
80,000, eighty thousand, 300,000 + 80,000+ 9,000+400+20+2
Hope that helped you!
First, you need to distribute.
5x-20= 3x+24
Then combine like terms
8x=4
then divide by 8
x=2