Question

49-3х=34 9у-89=55 74-8z=2 Хелп

Answer 1

Ответ:

49-3х=34

Перенесём константу в правую часть неравенства с противоположным знаком

-3х=34-49

-3х=-15

х=5

9у-89=55

9у=55+89

9у=144

у=16

74-8z=2

-8z=2-74

-8z=-72

z=9

Answer 2

49 - 3х = 34

- 3х = 34 - 49

- 3х = - 15

х = 15 : 3

х = 5

9у - 89 = 55

9у = 55 + 89

9у = 144

y = 144 : 9

y = 16

74 - 8z = 2

- 8z = 2 - 74

- 8z = - 72

z = 72 : 8

z = 9

Answer 3

Of course, I can help you solve these equations. Let's solve each one step by step:

1. 49 - 3x = 34

First, isolate the variable x by moving constants to the other side of the equation:

Subtract 49 from both sides:

49 - 3x - 49 = 34 - 49

-3x = -15

Now, divide both sides by -3 to solve for x:

(-3x) / (-3) = (-15) / (-3)

x = 5

So, the solution to the first equation is x = 5.

2. 9y - 89 = 55

Similarly, isolate the variable y:

Add 89 to both sides:

9y - 89 + 89 = 55 + 89

9y = 144

Now, divide both sides by 9 to solve for y:

(9y) / 9 = 144 / 9

y = 16

The solution to the second equation is y = 16.

3. 74 - 8z = 2

To solve for z, isolate the variable:

Subtract 74 from both sides:

74 - 8z - 74 = 2 - 74

-8z = -72

Now, divide both sides by -8:

(-8z) / (-8) = (-72) / (-8)

z = 9

So, the solution to the third equation is z = 9.

To summarize:

1. x = 5
2. y = 16
3. z = 9