We want to use elimination to solve
y = 0 (1)
x + y = 40 (2)
Multiply (1) by -1 to eliminate y.
-y = 0 (3)
Add (2) and (3).
x + y + (-y) = 40 + 0
x = 40
Answer: Multiply by -1.
Answer:
12.5%
Step-by-step explanation:
$4.50-$4/$4 x 100%
0.5/4x100%
50/4= 25/2 = 12.5%
and 
both have a common denominator, so you can combine them into a single fraction:
You cannot simplify this fraction further:
- - - - - - - - - - - - - - - - - - - -
Answer:
- - - - - - - - - - - - - - - - - - - - -
Answer:
i can see it
Step-by-step explanation:
X-2 = 4+x
+2 +2
x = 6+x
-x -x
0 = 6
Answer: no solution / empty set / ∅
