Fill in the blanks : to check a solution, you can the solutions into equations and verify both equations are true. subsitution is the best method to use when one variable is already or when one variable can be easily .

x = 23.78

step-by-step explanation:

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.