Y=2x+5 y is Tom's age and x is Jim's 2x because twice his age 5 because 5 more
Factor out the common term <span>u<span>
</span></span>
25 × x = 45
or 25÷100 × x= 45
multiplying both sides by 100 and dividing both sides by 25, we have x = 45×100÷25
therefore, x = 180
( if you use a calculator simply enter 45×100÷ 25)
Solve Using the Quadratic Formula n^2-2n-3=0
n
2
−
2
n
−
3
=
0
n
2
-
2
n
-
3
=
0
Answer:
Step-by-step explanation:
A is true. If you remove the brackets, the equation becomes -x + x = 0
B is not true. 0 = x + x. The equation gives 0=2x which can never be if x is anything but 0.