Question

3x - 6 = 18 25 - 2y = 13 4z + 9 = 49

Answer 1

Ответ:

х=4 y=6 z=40

Пошаговое объяснение:

3x-6=18

3x=12

x= 12:3

x=4

25-2y=13

-2y=-12

y=-12:-2

y=6

4z+9=49

4z=40

z=40:4

z=10

Answer 2

Ответ:

1 уравнение

3х=18+6

3х=24

х=24:3

х=8

ответ: х=8

2 уравнение

2у=25-13

2у=12

у=12:2

у=6

ответ:у=6

3 уравнение

4z=49-9

4z=40

z=40:4

z=10

ответ: z=10

Answer 3

To solve these equations, we'll go through them one by one and isolate the variable on one side of the equation. Let's start with the first equation:

3x - 6 = 18

First, we'll add 6 to both sides to isolate the term with x:

3x - 6 + 6 = 18 + 6 3x = 24

Next, we'll divide both sides by 3 to solve for x:

3x/3 = 24/3 x = 8

So, the solution to the first equation is x = 8.

Moving on to the second equation:

25 - 2y = 13

We'll start by subtracting 25 from both sides:

25 - 2y - 25 = 13 - 25 -2y = -12

Next, we'll divide both sides by -2 to solve for y:

(-2y)/(-2) = (-12)/(-2) y = 6

Therefore, the solution to the second equation is y = 6.

Now, let's solve the third equation:

4z + 9 = 49

We'll begin by subtracting 9 from both sides:

4z + 9 - 9 = 49 - 9 4z = 40

Next, we'll divide both sides by 4 to solve for z:

(4z)/4 = 40/4 z = 10

Hence, the solution to the third equation is z = 10.

To summarize the solutions: x = 8 y = 6 z = 10