Yes, Leonard did make an error
It should look like this:
-20x + 35 + 8 = 3x
Hope this helps!
12x-3y=21
4x-y=7
I hope this helps
Answer:
Y=x+3
Step-by-step explanation:
Just subtract the x value from the y value and you will always get the right answer... But isn't this iready? A test?
Answer:

Step-by-step explanation:
we know that
-----> by complementary angles
solve for x

Answer:
there are three factors of 1/s^6
Step-by-step explanation: