Well, since you have the value of b, the first thing you want to do is substitute that value in for b.
5a - 10(3) = 45
10*3 = 30
5a - 30 = 45
Now, to get the variable by itself (a) you have to + 30 because you have to reverse the subtraction.
5a = 75
Now, you divide by 5 to finish getting a by itself.
a = 15
Hope this helps!
Answer:
b
Step-by-step explanation:
there's a property for Alternate Interior Angles
40 would represent the starting number of comics.
Answer:
y = 6x + 10
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Here m = 6, thus
y = 6x + c ← is the partial equation
To find c substitute (- 3, - 8) into the partial equation
- 8 = - 18 + c ⇒ c = - 8 + 18 = 10
y = 6x + 10 ← equation of line
