Question

4) 2х - 15 - 13; 5) Ту-25 - 45;6) 130 - 4х = 70;7) 49 - 3х - 34;8) 9y - 89 - 55;9) 74-82 - 2.только с 6​

Answer 1

Пошаговое объяснение:

4)2х-15-13=2х-2

5)Ту-25-45=Ту-70

6)130-4х=70

4х=70-130

4х=-60

х=60:4

х=15

7)49-3х-34=15-3х

8)9у-89-55=9у-34

9)74-82-2=-10

Answer 2

It seems like you've provided a list of mathematical expressions and equations. It looks like you might want some help solving these equations. Let's go through each one step by step:

4. 2x - 15 - 13: Combine the constants: -15 - 13 = -28 The equation becomes: 2x - 28 There's nothing else to simplify unless you're looking for a specific value of x.

5. Ту-25 - 45: It seems like there might be a typo in this equation. "Ту-25" doesn't seem to be a valid mathematical expression. Please provide the correct expression or equation.

6. 130 - 4x = 70: To solve for x, isolate x on one side of the equation. Subtract 130 from both sides: 130 - 130 - 4x = 70 - 130 Simplify: -4x = -60 Divide by -4: x = 15

7. 49 - 3x - 34: Combine the constants: 49 - 34 = 15 The equation becomes: 15 - 3x There's nothing else to simplify unless you're looking for a specific value of x.

8. 9y - 89 - 55: Combine the constants: -89 - 55 = -144 The equation becomes: 9y - 144 There's nothing else to simplify unless you're looking for a specific value of y.

9. 74 - 82 - 2: Subtract 82 from 74: 74 - 82 = -8 Subtract 2 from -8: -8 - 2 = -10

If you have any specific questions about these equations or if you need further assistance, feel free to ask!