Question

1) -3x=5. 2) 2x=3x+4​

Answer 1

1) Выражаем x из уравнения, для этого произведение делим на известные множитель:

$x = \frac{5}{-3}=-\frac{5}{3}$

2) Переносим x в одну сторону и так же выражаем:

$2x- 3x=4\\-x=4\\x=-4$

Answer 2

Ответ:

1) -3х=5

-3х:(-3)=5:(-3)

х=-5/3=-1,6

2) 2х=3х+4

2х-3х=4

-х=4

х=4

Answer 3

To solve these equations, you need to isolate the variable x. Here's how you can solve each equation step by step:

1. -3x = 5

To solve for x in this equation, you want to get x by itself on one side of the equation. You can do this by performing the following steps:

Step 1: Add 3x to both sides of the equation to get rid of the -3x on the left side:

-3x + 3x = 5 + 3x

This simplifies to:

0 = 5 + 3x

Step 2: Subtract 5 from both sides to isolate 3x:

0 - 5 = 5 - 5 + 3x

-5 = 3x

Step 3: Finally, divide both sides by 3 to find the value of x:

-5 / 3 = 3x / 3

x = -5/3

So, the solution to the first equation is x = -5/3.

2. 2x = 3x + 4

To solve for x in this equation, you want to get x by itself on one side of the equation. Here's how you can do it:

Step 1: Subtract 3x from both sides of the equation to get rid of the 3x on the right side:

2x - 3x = 3x - 3x + 4

This simplifies to:

-x = 4

Step 2: Multiply both sides by -1 to isolate x:

(-1) * (-x) = (-1) * 4

This gives you:

x = -4

So, the solution to the second equation is x = -4.

Answer 4

To solve these equations, you'll need to isolate the variable 'x' on one side of the equation.

1. -3x = 5

To solve for x, first, you can add 3x to both sides of the equation to isolate x:

-3x + 3x = 5 + 3x

This simplifies to:

0 = 5 + 3x

Now, subtract 5 from both sides to solve for x:

0 - 5 = 5 - 5 + 3x

-5 = 3x

Now, divide both sides by 3 to find the value of x:

-5 / 3 = 3x / 3

x = -5/3

So, the solution to the first equation is x = -5/3.

2. 2x = 3x + 4

To solve for x, first, you can subtract 3x from both sides of the equation to isolate x:

2x - 3x = 3x - 3x + 4

This simplifies to:

-x = 4

Now, multiply both sides by -1 to solve for x:

(-x) * (-1) = 4 * (-1)

x = -4

So, the solution to the second equation is x = -4.