Question

Помогите решить пожалуйста 2/7 (y-7)-3/4(y-8)=17

Answer 1

2/7у-2-3/4у+6=17
2/7=8/28   ;   3/4=21/28
8/28у-2-21/28+6=17
-13/28у=17-6+2
у=13:(-13/28)=13*(-28/13)=-28
Вроде так

Answer 2

Смотри фото))) ())))))))))))

Answer 3

I can help you solve this equation. First, let's simplify the expression on the left side by distributing the fractions:

$$\frac{2}{7}(y-7)-\frac{3}{4}(y-8) = \frac{2y}{7}-\frac{14}{7}-\frac{3y}{4}+\frac{24}{4}$$

Then, let's combine the like terms and get a common denominator of 28:

$$\frac{8y}{28}-\frac{56}{28}-\frac{21y}{28}+\frac{168}{28} = \frac{-13y}{28}+\frac{112}{28}$$

Now, we can move the terms with y to one side and the constants to the other side by adding or subtracting both sides:

$$\frac{-13y}{28}+\frac{112}{28} = 17$$

$$\frac{-13y}{28} = 17 - \frac{112}{28}$$

$$\frac{-13y}{28} = \frac{364}{28} - \frac{112}{28}$$

$$\frac{-13y}{28} = \frac{252}{28}$$

Finally, we can solve for y by multiplying both sides by the reciprocal of -13/28:

$$y = \frac{252}{28} \cdot \frac{-28}{13}$$

$$y = -18$$

The solution is y = -18. You can check this by plugging it back into the original equation and verifying that both sides are equal. I hope this helps you understand how to solve this equation.Ответь+подробно.+Помогите+решить+пожалуйста+2/7+(y-7)-3/4(y-8)=17