Answer:
63
Step-by-step explanation:
9x7=(10x7)-1x(7)
=70-7
=63
You need to add a -1
We can find this by setting up the equation like so
x + (-6) + 12 + 15 / 4 = 5
x + 21 = 20
x = 20 -21
x = -1
Now if we insert -1 where x is located in the equation, you will get a means of 5
Step-by-step explanation:
slope another name for gradient
This is how you do it hope this helps.