Question

27+2х-5=8х+13-3х 2(3+х)+3(2х+4)=2 5(3х-2)+3(2х+5)=-16

Answer 1

Вроде все правильно )

Answer 2

Let's solve the given equations step by step:

1. 27 + 2x - 5 = 8x + 13 - 3x

Let's simplify both sides of the equation: 27 + 2x - 5 = 8x + 13 - 3x 22 + 2x = 5x + 13

Next, let's move all the terms involving x to one side of the equation by subtracting 2x from both sides: 22 + 2x - 2x = 5x + 13 - 2x 22 = 3x + 13

Now, let's isolate the x term by subtracting 13 from both sides: 22 - 13 = 3x + 13 - 13 9 = 3x

Finally, divide both sides by 3 to solve for x: 9/3 = 3x/3 3 = x

So the solution to the first equation is x = 3.

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

Let's simplify both sides of the equation: 2(3 + x) + 3(2x + 4) = 2 6 + 2x + 6x + 12 = 2 8x + 18 = 2

Next, let's isolate the x term by subtracting 18 from both sides: 8x + 18 - 18 = 2 - 18 8x = -16

Finally, divide both sides by 8 to solve for x: 8x/8 = -16/8 x = -2

So the solution to the second equation is x = -2.

3. 5(3x - 2) + 3(2x + 5) = -16

Let's simplify both sides of the equation: 5(3x - 2) + 3(2x + 5) = -16 15x - 10 + 6x + 15 = -16 21x + 5 = -16

Next, let's isolate the x term by subtracting 5 from both sides: 21x + 5 - 5 = -16 - 5 21x = -21

Finally, divide both sides by 21 to solve for x: 21x/21 = -21/21 x = -1

So the solution to the third equation is x = -1.

To summarize, the solutions to the given equations are:

1. x = 3
2. x = -2
3. x = -1