Question

1) -2x+16=5x-19 2) 25-3b=9-5b 3)3+11y=203+y 4)5x-4,5=3x+2,5 5)6x-0,8=3x+2,2 6)4x+5,5=2x-2,5 7)3x-0,6=x+4,4 Сделайте со с решением, даю 60 баллов Спасибо, если сделаете

Answer 1

1) -2х + 16 = 5х - 19                    2) 25 - 3b = 9 - 5b

16 + 19 = 5х + 2х                        5b - 3b = 9 - 25

35 = 7х                                       2b = -16

х = 35 : 7                                    b = -16 : 2

х = 5                                           b = -8

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3) 3 + 11у = 203 + у                    4) 5х - 4,5 = 3х + 2,5

11у - у = 203 - 3                          5х - 3х = 2,5 + 4,5

10у = 200                                   2х = 7

у = 200 : 10                                х = 7 : 2

у = 20                                         х = 3,5

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5) 6х - 0,8 = 3х + 2,2                 6) 4х + 5,5 = 2х - 2,5

6х - 3х = 2,2 + 0,8                     4х - 2х = -2,5 - 5,5

3х = 3                                         2х = -8

х = 3 : 3                                      х = -8 : 2

х = 1                                            х = -4

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7) 3х - 0,6 = х + 4,4

3х - х = 4,4 + 0,6

2х = 5

х = 5 : 2

х = 2,5

Answer 2

1) -2x + 16 = 5x - 19

To solve this equation, we need to isolate the variable x.

First, let's combine like terms:

-2x - 5x = -19 - 16 -7x = -35

Next, let's divide both sides of the equation by -7:

x = (-35) / (-7) x = 5

Therefore, the solution to the equation is x = 5.

2) 25 - 3b = 9 - 5b

Let's start by simplifying the equation:

25 - 9 = -5b + 3b 16 = -2b b = -8

The solution to the equation is b = -8.

3) 3 + 11y = 203 + y

Let's simplify the equation:

11y - y = 203 - 3 10y = 200 y = 20

The solution to the equation is y = 20.

4) 5x - 4.5 = 3x + 2.5

First, let's combine like terms:

5x - 3x = 2.5 + 4.5 2x = 7

Next, let's divide both sides of the equation by 2:

x = 7 / 2 x = 3.5

The solution to the equation is x = 3.5.

5) 6x - 0.8 = 3x + 2.2

Let's start by simplifying the equation:

6x - 3x = 2.2 + 0.8 3x = 3

Next, let's divide both sides of the equation by 3:

x = 3 / 3 x = 1

Therefore, the solution to the equation is x = 1.

6) 4x + 5.5 = 2x - 2.5

Let's simplify the equation:

4x - 2x = -2.5 - 5.5 2x = -8

Next, let's divide both sides of the equation by 2:

x = -8 / 2 x = -4

The solution to the equation is x = -4.

7) 3x - 0.6 = x + 4.4

First, let's combine like terms:

3x - x = 4.4 + 0.6 2x = 5

Next, let's divide both sides of the equation by 2:

x = 5 / 2 x = 2.5

Therefore, the solution to the equation is x = 2.5.

By solving these equations, I have provided the values for x and b. I hope this helps! If you have any further questions, please let me know.