Subtract from both sides and then divide and u will get 69
Answer:
![\quad \frac{25x+2}{3}-21](https://tex.z-dn.net/?f=%5Cquad%20%5Cfrac%7B25x%2B2%7D%7B3%7D-21)
Step-by-step explanation:
![3(2x-7)+ 1/ 3 (7x+2)\\\\\mathrm{Expand}\:3\left(2x-7\right):\quad 6x-21\\=6x-21+\frac{1}{3}\left(7x+2\right)\\\\\mathrm{Expand}\:\frac{1}{3}\left(7x+2\right):\quad 7\times\frac{1}{3}x+2\times \frac{1}{3}\\\\=6x-21+7\times\frac{1}{3}x+2\times\frac{1}{3}\\\\\mathrm{Simplify}\:6x-21+7\times\frac{1}{3}x+2\times\frac{1}{3}:\\\\\quad \frac{25x+2}{3}-21](https://tex.z-dn.net/?f=3%282x-7%29%2B%201%2F%203%20%287x%2B2%29%5C%5C%5C%5C%5Cmathrm%7BExpand%7D%5C%3A3%5Cleft%282x-7%5Cright%29%3A%5Cquad%206x-21%5C%5C%3D6x-21%2B%5Cfrac%7B1%7D%7B3%7D%5Cleft%287x%2B2%5Cright%29%5C%5C%5C%5C%5Cmathrm%7BExpand%7D%5C%3A%5Cfrac%7B1%7D%7B3%7D%5Cleft%287x%2B2%5Cright%29%3A%5Cquad%207%5Ctimes%5Cfrac%7B1%7D%7B3%7Dx%2B2%5Ctimes%20%5Cfrac%7B1%7D%7B3%7D%5C%5C%5C%5C%3D6x-21%2B7%5Ctimes%5Cfrac%7B1%7D%7B3%7Dx%2B2%5Ctimes%5Cfrac%7B1%7D%7B3%7D%5C%5C%5C%5C%5Cmathrm%7BSimplify%7D%5C%3A6x-21%2B7%5Ctimes%5Cfrac%7B1%7D%7B3%7Dx%2B2%5Ctimes%5Cfrac%7B1%7D%7B3%7D%3A%5C%5C%5C%5C%5Cquad%20%5Cfrac%7B25x%2B2%7D%7B3%7D-21)
Answer:
Marks age is 24.
Step-by-step explanation:
If Sunita's age is x then Mark's age = 4x/3 years.
In 12 years their ages will be (x + 12) and 4x/3 + 12.
So (x + 12) / (4x/3 + 12) = 5/6
6(x + 12) = 5(4x/3 + 12)
6x + 72 = 20x / 3 + 60
72 - 60 = 20x/3 - 6x Multiply through by 3:
216 - 180 = 20x - 18x
2x = 36
x = 18 = Sunita's age
So Mark's age is 18 * 4/3 = 24 years.
Answer:
C
Step-by-step explanation:
the answer is C because only C contained it's correct root and power