Question

16-18=-25x-12 -17x+20=7x-28 2x+43=4x-65

Answer 1

Ответ:

Пошаговое объяснение:

16-18=-25x-12

-2 = -25x - 12

25x = -12 + 2

25x = -10

x = -10 : 25

x = -0.4

-17x+20=7x-28

-17x - 7x = -28 - 20

-24x = -48

24x = 48

x = 2

2x+43=4x-65

2x - 4x = -65 - 43

-2x = -108

2x = 108

x = 54

Answer 2

Ответ:

Пошаговое объяснение:

16-18х=-25x-12

25х-18х=-12-16

7х=-28

х=-28:7

х=-4

-17x+20=7x-28

-17х-7х=-28-20

-24х=-48

х=-48:(-24)

х=2

2x+43=4x-65

2х-4х=-65-43

-2х=-108

х=-108:(-2)

х=54

Answer 3

To solve these equations, let's start by solving each one step-by-step:

1. 16 - 18 = -25x - 12

To solve this equation, combine like terms and isolate the variable x: -2 = -25x - 12 Add 12 to both sides: -2 + 12 = -25x 10 = -25x Now, divide both sides by -25 to solve for x: x = 10 / -25 x = -2/5

2. -17x + 20 = 7x - 28

To solve this equation, again, combine like terms and isolate the variable x: 20 = 7x - 28 + 17x 20 = 24x - 28 Add 28 to both sides: 20 + 28 = 24x 48 = 24x Now, divide both sides by 24 to solve for x: x = 48 / 24 x = 2

3. 2x + 43 = 4x - 65

Let's solve this equation: 43 = 4x - 2x - 65 43 = 2x - 65 Add 65 to both sides: 43 + 65 = 2x 108 = 2x Now, divide both sides by 2 to solve for x: x = 108 / 2 x = 54

So, the solutions for the three equations are: x = -2/5, x = 2, and x = 54.