5a + 2a(5 + (-b)) = 5a + 2a(5 - b)
Use the distributive property which states a(b+c) = ab + ac
5a + 10a - 2ab
Simplify like terms
15a - 2ab
Answer:
pi + -pi = 0
Step-by-step explanation:
We need to have irrational numbers that we are adding and end up with a rational number. This means that it is not closed under addition
pi is an irrational number
0 is a rational number
pi + -pi = 0
irrational + irrational = rational
Answer:
x=2
Step-by-step explanation:
5x+10=24-2x
5x+10-10=24-2x-10
5x= -2x+14
5x+2x= -2x+14+2x
7x=14
7x/7=14/7
x=2
It is the second one down
Yes. just multiply 2x19= 38
