7(3-x)+1 .. first you're going to distribute
21-7x+1 .. then combine like terms
22-7x .. subtract 22 from both sides to get the variable X alone.
-7x=-22
x=3.14
Answer:
Step-by-step explanation:
When we remove coffee beans, then the quantity of beans reduces. So, we have to subtract to find the remaining coffee beans.
q = 1500 - n
Answer:
6752 cm³ of wood
Step-by-step explanation:
V = 40cm×34cm×30cm = 40800 cm³
v = 38cm×32cm×28cm = 34048 cm³
V - v = 40800cm³ - 34048cm³ = 6752 cm³ of wood
5 and -5
The brackets indicate absolute numbers meaning the number within the brackets, regardless of positive or negative, is always a positive number
Hello there! How are you today?
5a^2 + 2b^3, solve when a = 4 and b = -4
To solve for this, we must replace "a" with 4, and "b" with -4.
I will set it up;
5(4^2) + 2(-4^3)
Simplify the parenthesis (PEMDAS).
5(16) + 2(-64)
Remove the parenthesis by multiplying them by the numbers to the outside of them.
5 x 16 = 80
2 x -64 = -128
We are now left with:
80 - 128
Simplify.
-48 is your final answer.
I hope this helps!
