Answer: 12
Step-by-step explanation: 3 times 4=12
1. 1/5 = x - 9 / x
2. Cross multiply x = 5 (x - 9)
3. Distribute x = 5x - 45
4. Move the variable and change the sign x - 5x = -45
5. Add like terms -4x = -45
6. Divide x = 45 / 4
So the solution is x = 45 / 4 or 11.25
Step-by-step explanation:
If x=3, y=7 when x+y=z
z=3+7
z=10
Answer:
0.75
Step-by-step explanation:
9/12 equals 3/4 which is 0.75
