Question

11x=14+4x 4(x+3)=5(x-2) 0,8(j-5)=0,6(j+1)+2,4

Answer 1

Зачем вообще придумали писать больше 20 символов?

Answer 2

Let's solve each equation step by step:

1. 11x = 14 + 4x

To solve this equation for x, we want to get all the x terms on one side and the constant terms on the other side.

Subtract 4x from both sides:

11x - 4x = 14 + 4x - 4x

This simplifies to:

7x = 14

Now, divide both sides by 7 to isolate x:

x = 14 / 7

x = 2

So, the solution to the equation is x = 2.

2. 4(x + 3) = 5(x - 2)

To solve this equation for x, we need to distribute the values inside the parentheses first:

4x + 12 = 5x - 10

Next, move all the x terms to one side and the constant terms to the other side:

4x - 5x = -10 - 12

This simplifies to:

-x = -22

Now, to get the positive value of x, multiply both sides by -1:

x = 22

The solution to the equation is x = 22.

3. 0.8(j - 5) = 0.6(j + 1) + 2.4

Let's simplify this equation step by step:

Distribute the values inside the parentheses:

0.8j - 4 = 0.6j + 0.6 + 2.4

Combine the constant terms on the right side:

0.8j - 4 = 0.6j + 3

Now, move all the j terms to one side and the constant terms to the other side:

0.8j - 0.6j = 3 + 4

0.2j = 7

To isolate j, divide both sides by 0.2:

j = 7 / 0.2

j = 35

The solution to the equation is j = 35.