He bought 5 science books and 2 Math Books
5 Science Books = $300
2 Science Books = $100
7 Books = 400
Answer:
5
Step-by-step explanation:
13 = -2(y - 4) + 3y
13 = -2y + 8 + 3y
13 = y + 8
5 = y
y = 5
Answer:

Step-by-step explanation:
When we solve for an equation, our goal is to find the value of the variable. Any variable can be used, but for the time being let’s assume we use
.
We can algebraeically solve equations until we get the value of x - in which we will have x equal to something.
Say we have the equation
. Our goal is to find the value of
. <u>We can do this by getting x isolated on one side so we have something equal to x</u>.
We can subtract 5 from both sides and divide both sides by 5.

We now know the value of
since it’s on one side of the equation.
Hope this helped!
9,250 is the answer i believe
Answer:Step 1. Turn the second fraction (the one you want to divide by) upside down (this is now a reciprocal).
Step 2. Multiply the first fraction by that reciprocal
Step 3. Simplify the fraction (if needed)
Example:
1/2 ÷ 1/6
Step 1. Turn the second fraction upside down (it becomes a reciprocal):
1/6 becomes 6/1
Step 2. Multiply the first fraction by that reciprocal:
1/2 x 6/1 = (1x6) / (2x1) = 6/2
Step 3. Simplify the fraction:
6/2 = 3
Step-by-step explanation: