Answer:
If it is y=2x-7 the slope is
2
If it is y=-2x-7 the slope is
-2
The y-intercept is -7
Step-by-step explanation:
I don't really know how to give an explanation because the answers are in the equation so I'm sorry for that
Answer:
10
Step-by-step explanation:
10 x 2 = 20
10 = 20 / 2
Answer:

Step-by-step explanation:
The given problem is a subtraction problem between fractions. The first step in a problem like this is to convert both fractions to a common denominator. In other words, multiply both the numerator and denominator of a fraction by the same value such that the denominator of one of the fractions is the same as the other fraction. The numerator of a fraction is the value over the fraction bar, whereas the denominator is the value under it. Multiplying any fraction by a number over itself is the same as multiplying it by one, thus, the equation will remain true, and be equivalent to the original expression.

Convert to a common denominator,


Now perform the subtraction, subtract one numerator from the other, remember, do no perfrom any more operations with the denominators,

Ok, so
Length = L
Width = L + 7
Since area = length x width, then
30 = L × (L + 7)
Remember that L + 7 Is width so...
L + 7 = 30/L
So the expression for the width in terms of length would be...
w = 30/L - 7