The extraneous root is
x = 2
1. 4(2+3)−1(5-1)
8+12−1(5−1)
2. 8+12−1(5−1)
8x+12-5x+1
3. 8x+12-5x+1
8x+13-5x
4. 8x+13-5x
answer: 3x+13
(7*4 + 14*1)/(7+14) = 42/21 = $2/ kg of mixture;
Answer:
D.
Step-by-step explanation:
a line that is y= is always horizontal.
