Right now you have a/3 = 7. You cannot know what a is yet because it is being divided by 3.
You just need to figure out a way of getting rid of that 3 so you just have a by itself. The way you can get rid of the 3 is by multiplying a/3 by 3, as that will just leave you with a (multiplying is the opposite of dividing so it cancels out).
However, as you’re multiplying a/3 by 3, you also have to multiply 7 by 3 (which is 21) as you have to do the multiplication on both sides of the equation.
Therefore, you’re left with a = 21
Answer:
350,000 = three hundred fifty thousand
The answer is C. Write 3x as a difference, and Use the commutative property to reorder the terms.
The y - intercept is (0, -7) and the slope is 5. Using the equation y = mx + b, where m is the slope and b is the y - intercept, the answer must be a. y = 5x - 7
10|5n-5|=50 divide both sides by 10
|5n-5|=5 square both sides:
25n^2-50n+25=25 subtract 25 from both sides
25n^2-50n=0 factor...
25n(n-2)=0
So n=0 and 2
