Ok so we'll go ahead and solve for y first - we just need to get it alone on one side of the equal sign
Step 1: subtract 2x from each side
2x - 7y - 2x = 19 - 2x
This cancels out the 2x on the left, giving us
-7y = 19 - 2x
Step 2: divide both sides by -7
= +
This gives us
y = -19/7 + 2x/7
That should be your answer for the first question. Now solving the next parts are easy. All you need to do is plug in x.
When x = -3
y = -19/7 + 2x/7
y = -19/7 + 2(-3)/7
y = -19/7 - 6/7
y = -25/7
When x = 0
y = -19/7 + 2x/7
y = -19/7 + 2(0)/7
y = -19/7
When x = 3
y = -19/7 + 2x/7
y = -19/7 + 2(3)/7
y = -19/7 + 6/7
y = -13/7
Hope that helps! Feel free to ask if I can help with anything else :)
Answer:
w = 5
Step-by-step explanation:
-4(w + 1) = -24
(w + 1) = -24/-4
(w + 1) = 6
w = 6 - 1
w = 5
*negative ÷ negative = positive*
Alright, lets get started.
Distributing into parenthesis
Subtracting from both sides
Adding in both sides
Adding in both sides
Making common denominator, adding fractions
It means
Dividing 23 in both sides
In interval notation
[,∞)
This is the answer
Hope it will help :)
So, the answer is b multiplied by n or
b·n
Because she buys n books, and each book costs b dollars, so n·b gives you the total
Answer:
D. 37.68
Step-by-step explanation:
Circumference of a circle is 2 x pi x radius
your radius is 6 bc its half of your diameter is 12
when you multify them together, it gives you ab 37.68