If the following system has a solution, what is the x − coordinate of the solution?
4x + 8y = 60
x + 8y = 30

a. 6
b. 10
c. 618
d. 730
e. the system has no solution

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.