There are two ways to do this but the way I prefer is to make one of the equations in terms of one variable and then 'plug this in' to the second equation. I will demonstrate
Look at equation 1,

this can quite easily be manipulated to show

.
Then because there is a y in the second equation (and both equations are simultaneous) we can 'plug in' our new equation where y is in the second one

which can then be solved for x since there is only one variable

and then with our x solution we can work out our y solution by using the equation we manipulated

.
So the solution to these equations is x=-2 when y=6
Answer: The answer is D: a pizza is cut into 8 slices Beth eats 7 of them. what fraction of the pizza did Beth eat.
Step-by-step explanation:
If there are 8 slices and 7 of them have been eaten, that means 7/8 have been consumed.
Answer:
612000
Step-by-step explanation:
(20*3)*60=360
360*1700=612000
x =14
Answer:
Step-by-step explanation:
11. By inscribed angle theorem:
12. Again by inscribed angle theorem:
The answer is 8 because you use the order of operations. So it would be 16 divided by 4, then you would do 4+4 which is 8