Question

6х=1-(4-6х) 6у-(у-4)=4+5 5,6-7у=-4(2у-0,9)+2,4 х-0,5=2(0,3х-0,2)

Answer 1

Сто процентов правильно у меня 11 по математике

Answer 2

Let's solve each equation step by step:

1. 6x = 1 - (4 - 6x)

To solve this equation, we need to remove parentheses first:

6x = 1 - (4 - 6x) 6x = 1 - 4 + 6x

Now, combine like terms:

6x - 6x = 1 - 4 0 = -3

The equation is inconsistent. There is no solution for x that would satisfy this equation.

2. 6y - (y - 4) = 4 + 5

Again, remove parentheses:

6y - (y - 4) = 4 + 5 6y - y + 4 = 9

Combine like terms:

5y + 4 = 9

Subtract 4 from both sides:

5y = 5

Finally, divide by 5:

y = 1

The solution for y is 1.

3. 5.6 - 7y = -4(2y - 0.9) + 2.4

Expand the right side:

5.6 - 7y = -8y + 3.6 + 2.4

Combine like terms:

5.6 - 7y = -8y + 6

Add 7y to both sides:

5.6 = -y + 6

Subtract 6 from both sides:

-0.4 = -y

Finally, multiply by -1 to isolate y:

y = 0.4

The solution for y is 0.4.

4. x - 0.5 = 2(0.3x - 0.2)

Distribute 2 on the right side:

x - 0.5 = 0.6x - 0.4

Move all x terms to the left side:

x - 0.6x = -0.4 + 0.5

Combine like terms:

-0.6x = 0.1

Now, divide by -0.6 to solve for x:

x = 0.1 / -0.6 x = -0.1667 (rounded to four decimal places)

The solution for x is approximately -0.1667.

Please note that in the first equation, there was no solution for x that would satisfy the equation. In the other equations, there were valid solutions for y and x.