Question

(120 - x) - 35 = 45 123 - (x - 25) = 83 (65 - x) + 23 = 43

Answer 1

Х=40

Х=65

Х=45

Вот ответы

Answer 2

Let's solve each of these equations step by step:

1. (120 - x) - 35 = 45

First, simplify the equation by combining like terms:

(120 - x) - 35 = 45

Now, add 35 to both sides of the equation to isolate (120 - x):

(120 - x) = 45 + 35 (120 - x) = 80

Next, subtract 120 from both sides to isolate x:

• x = 80 - 120
• x = -40

So, the solution for the first equation is x = -40.

2. 123 - (x - 25) = 83

To solve this equation, you can start by removing the parentheses by distributing the negative sign:

123 - x + 25 = 83

Next, combine like terms:

123 + 25 - x = 83

Now, subtract 148 from both sides to isolate x:

• x = 83 - 148
• x = -65

So, the solution for the second equation is x = -65.

3. (65 - x) + 23 = 43

First, simplify the equation by combining like terms:

(65 - x) + 23 = 43

Now, subtract 23 from both sides to isolate (65 - x):

65 - x = 43 - 23 65 - x = 20

Next, subtract 65 from both sides to isolate x:

• x = 20 - 65
• x = -45

So, the solution for the third equation is x = -45.

Answer 3

To solve these equations, you'll want to isolate the variable "x" on one side of the equation. Let's solve each equation step by step:

1. (120 - x) - 35 = 45

   Start by simplifying the left side of the equation: 120 - x - 35 = 45

   Next, add 35 to both sides of the equation to isolate the variable "x": 120 - x - 35 + 35 = 45 + 35

   This simplifies to: 120 - x = 80

   Now, subtract 120 from both sides to solve for "x": 120 - x - 120 = 80 - 120

   This simplifies to: -x = -40

   Finally, divide both sides by -1 to find the value of "x": x = 40

2. 123 - (x - 25) = 83

   Start by distributing the negative sign through the parentheses on the left side: 123 - x + 25 = 83

   Next, combine like terms on the left side of the equation: 123 + 25 - x = 83

   Combine the constants on the left side: 148 - x = 83

   Now, subtract 148 from both sides to isolate "x": 148 - x - 148 = 83 - 148

   This simplifies to: -x = -65

   Finally, divide both sides by -1 to find the value of "x": x = 65

3. (65 - x) + 23 = 43

   Start by simplifying the left side of the equation: 65 - x + 23 = 43

   Combine like terms on the left side: 65 + 23 - x = 43

   Combine the constants on the left side: 88 - x = 43

   Now, subtract 88 from both sides to isolate "x": 88 - x - 88 = 43 - 88

   This simplifies to: -x = -45

   Finally, divide both sides by -1 to find the value of "x": x = 45

So, the solutions to the equations are:

1. x = 40
2. x = 65
3. x = 45