Question

А) 1/4В)3/20С)2/9D)1/92.3m-6n/3=53.7y(0,5y+1)+1,5y-9 y=-0,4​

Answer 1

Ответ:

1) 5-а-3=2-а

8-10-б=-2-б

9-с-7=2-с

2) 2-8+с=-6+с=с-6

3-d-5=-2-d

4+a-9=a-5

3) 0,8-m-3=-2,2-m

1,4+n-2=-0.6+n=n-0.6

2,6+k-10=k-7,4

Пошаговое объяснение:

Answer 2

To solve the equation (2.3m - 6n) / 3 = 53.7y(0.5y + 1) + 1.5y - 9 for y = -0.4, you can substitute -0.4 for y and then solve for m and n. Here's how you do it:

1. Substitute y = -0.4 into the equation:

(2.3m - 6n) / 3 = 53.7(-0.4)(0.5(-0.4) + 1) + 1.5(-0.4) - 9

2. Simplify the expression on the right side:

(2.3m - 6n) / 3 = 53.7(-0.4)(-0.2 + 1) + 1.5(-0.4) - 9

3. Continue simplifying:

(2.3m - 6n) / 3 = 53.7(-0.4)(0.8) - 0.6 - 9

4. Calculate the values on the right side:

(2.3m - 6n) / 3 = -17.28 - 0.6 - 9

5. Add the numbers on the right side:

(2.3m - 6n) / 3 = -27.88

6. Now, multiply both sides of the equation by 3 to isolate (2.3m - 6n):

2.3m - 6n = -27.88 * 3

2.3m - 6n = -83.64

7. Finally, if you need to find specific values for m and n, you can do so by rearranging the equation. Let's solve for m:

2.3m = -83.64 + 6n

m = (-83.64 + 6n) / 2.3

Similarly, if you want to find n, you can rearrange the equation:

-6n = 2.3m - 83.64

n = (83.64 - 2.3m) / 6

So, you have expressions for m and n in terms of each other and the constant -83.64. If you have specific values for m or n, you can plug them into these equations to find the other variable.