X+10=18. |-10 from both sides
x+10-10=18-10
x=8
Answer:90meters per second
Step-by-step explanation:
Answer:
x=-5, 5
Step-by-step explanation:
To factor an equation, break the polynomial into two binomials which multiply to make it. This is a difference of squares. Factor by taking the square root of each term. 

Once you have the factors, set them equal to 0 and solve for x to find the zeros.
(x+5)=0
x=-5
(x-5) = 0
x=5
6 19/25 as decimal is 4.56