Answer:
D
Step-by-step explanation:
A is not, because 2-5x = -5x+2
(nothing has changed but the order)
B is not, because 3-5+2x = 2x-2
because 3-5 = -2. so -2+2x can be rewritten as 2x-2.
C is not, because 5x-2x = 3x
because you combine like terms, and 5-2 is 3
D <em>i</em><em>s</em><em>,</em> because 2x-2+3x = 5x-2
because you combine like terms (2x+3x=5x) and -2 is left.

The solution of the system of equation is the coordinates of the common point on both lines !
that is ~
Therefore the Correct choice is C
X+y=10 in y-intercept is y=-x+10. 10 is the y intercept. The ordered pair is (0, 10)
Answer:
please post the figure then it will be easier to solve the problem
Area of a square = Length ^2
480 = (x+4)^2
√480 = x + 4
21.9 = x + 4
x = 17.9