Question

( 11 - 3x) *3=15 (5x + 2)*5=60 (49 - 11x):3=9

Answer 1

1) (11-3x)*3=15

11-3x=15:3

11-3x=5

-3x= -6

x=2

2) (5x+2)*5=60

5x+2=60:5

5x+2= 12

5x=10

x=2

3) (49-11x):3=9

49-11x=9*3

-11x= 27-49

-11x=-22

x=2

Answer 2

Решение внизу на фото

Answer 3

To solve these equations, we'll perform the necessary operations step by step. Let's start with the first equation:

1. (11 - 3x) * 3 = 15

Step 1: Distribute the multiplication on the left side of the equation. (11 * 3) - (3x * 3) = 15

Step 2: Simplify the equation. 33 - 9x = 15

Step 3: Move the constant term to the right side of the equation and the variable term to the left side. 33 - 15 = 9x

Step 4: Simplify. 18 = 9x

Step 5: Solve for x by dividing both sides by 9. x = 18 / 9 x = 2

Now, let's move on to the second equation:

2. (5x + 2) * 5 = 60

Step 1: Distribute the multiplication on the left side of the equation. (5x * 5) + (2 * 5) = 60

Step 2: Simplify the equation. 25x + 10 = 60

Step 3: Move the constant term to the right side of the equation and the variable term to the left side. 25x = 60 - 10

Step 4: Simplify. 25x = 50

Step 5: Solve for x by dividing both sides by 25. x = 50 / 25 x = 2

Finally, let's proceed with the third equation:

3. (49 - 11x) : 3 = 9

Step 1: Divide the left side of the equation by 3. (49 - 11x) / 3 = 9

Step 2: Multiply both sides of the equation by 3 to isolate (49 - 11x) on the left side. 49 - 11x = 9 * 3

Step 3: Simplify. 49 - 11x = 27

Step 4: Move the constant term to the right side of the equation and the variable term to the left side. 49 - 27 = 11x

Step 5: Simplify. 22 = 11x

Step 6: Solve for x by dividing both sides by 11. x = 22 / 11 x = 2

It looks like x = 2 is the solution for all three equations.