A. (-1, 1)
b. (2, 7)
c. (1, -1)
hope this helps :)
Answer:
Combining and simplifying
we get
or we can write as 
Step-by-step explanation:
We need to combine and simplify

First we will combine like terms and then perform the mathematical operations like addition or subtraction.
<u>Like terms</u>: terms having same variable

Now we take LCM of like terms

Now, we can multiply 48 with terms inside the bracket.
we can simplify the terms if they are both divisible by same number.

So, Combining and simplifying
we get
or we can write as 
Answer:
20 m/s, if that's what your asking.
Step-by-step explanation:
<u><em>Answer: A. -14. x=-14 and -14=x. *The answer should be the negative sign.*</em></u>
Step-by-step explanation:
subtraction property of equality is subtracting the same number from both sides of an equation does not change the equation.
switch sides of an equation.
x+19=5
subtract by 19 both sides of an equation.
x+19-19=5-19
simplify.
19-5=14
x=-14 and -14=x
Hope this helps!
Thanks!
Have a great day!