Question

350 : (20 x X - 15) = 70420 + (4 x X + 360) = 940350 + (600 - 5 x X) = 450 ​

Answer 1

Первое не знаю

420 + (4 X + 360) = 940

4 X + 360 = 940 - 420

4 X + 360 = 520

4 X = 520 - 360

4 X = 160

X = 40

350 + (600 - 5 X) = 450

600 - 5 X = 450 - 350

600 - 5 X = 100

5 X = 600 - 100

5 X = 500

X = 100

Answer 2

Let's solve each equation step by step:

1. 350 : (20 x X - 15) = 70420

To solve this equation, we first need to get rid of the division. We do this by multiplying both sides of the equation by the denominator (20x - 15):

350 * (20x - 15) = 70420

Now, expand the left side:

7000x - 5250 = 70420

Next, move the constant term (-5250) to the right side by adding it to both sides:

7000x = 70420 + 5250 7000x = 75670

Finally, divide both sides by 7000 to solve for x:

x = 75670 / 7000 x ≈ 10.81

So the solution to the first equation is approximately x = 10.81.

2. 70420 + (4 x X + 360) = 940350

Following similar steps as above, let's solve for x:

70420 + (4x + 360) = 940350

First, combine the constant terms:

4x + 360 = 940350 - 70420 4x + 360 = 870930

Next, move the constant term (360) to the right side:

4x = 870930 - 360 4x = 870570

Finally, divide both sides by 4 to solve for x:

x = 870570 / 4 x = 217642.5

So the solution to the second equation is x = 217642.5.

3. 940350 + (600 - 5 x X) = 450

Let's solve for x in the third equation:

940350 + (600 - 5x) = 450

First, combine the constant terms:

600 - 5x = 450 - 940350 600 - 5x = -939900

Next, move the constant term (600) to the right side:

-5x = -939900 - 600 -5x = -940500

Finally, divide both sides by -5 to solve for x:

x = -940500 / -5 x = 188100

So the solution to the third equation is x = 188100.

In summary, the solutions to the given equations are approximately:

1. x ≈ 10.81
2. x = 217642.5
3. x = 188100