Answer:
4
Step-by-step explanation:
Substitute: ![\frac{\frac{12}{2} +5*6}{3*3}](https://tex.z-dn.net/?f=%5Cfrac%7B%5Cfrac%7B12%7D%7B2%7D%20%2B5%2A6%7D%7B3%2A3%7D)
Cross out the common factor: ![\frac{6+5*6}{3*3}](https://tex.z-dn.net/?f=%5Cfrac%7B6%2B5%2A6%7D%7B3%2A3%7D)
Calculate the product or quotient: ![\frac{6 +30}{3*3}](https://tex.z-dn.net/?f=%5Cfrac%7B6%20%2B30%7D%7B3%2A3%7D)
Calculate the product or quotient: ![\frac{6+30}{9}](https://tex.z-dn.net/?f=%5Cfrac%7B6%2B30%7D%7B9%7D)
Calculate the sum or difference: ![\frac{36}{9}](https://tex.z-dn.net/?f=%5Cfrac%7B36%7D%7B9%7D)
Cross out the common factor: ![4](https://tex.z-dn.net/?f=4)
Answer: ![4](https://tex.z-dn.net/?f=4)
Answer:
Step-by-step explanation:
Not too sure but i think it’s D
Answer:
x = 5 y =-2
Step-by-step explanation:
You can substitute the 4y in,
7x - (-3-x) = 43
7x + 3 + x = 43
8x + 3 = 43
8x = 40
x = 5
Then plug the x back into the equation,
4y = -3 - 5
4y = -8
y = -2
Well the younger sister is 14 the middle is 16 and the oldest is 18