Answer: 7/21 is the answer because 7 * 2 = 14 and 21*2=42
Step-by-step explanation:
Answer:
hard question
2x-4+4=6x+4-4x
2x=2x+4
c there is no solution
6x+25=10x-47
16x -22
(6x + 10x) + (-47 +25)