Question

400+с*20=500 а*30+400=460 560:х=347-340

Answer 1

Ответ:

Пошаговое объяснение:

1)с*20=500-400

с*20=100

с=100:20

с=5

ответ:с=5

2) а*30=460-400

а*30=60

а=60:30

а=2

ответ:а=2

3)560:х=347-340

560:х=7

х=560:7

х=80

ответ:х=80

Answer 2

Let's solve the equations step by step:

1. 400 + c * 20 = 500 Subtract 400 from both sides: c * 20 = 100 Divide both sides by 20: c = 100 / 20 c = 5

2. a * 30 + 400 = 460 Subtract 400 from both sides: a * 30 = 460 - 400 a * 30 = 60 Divide both sides by 30: a = 60 / 30 a = 2

3. 560 / x = 347 - 340 Simplify the right side: 560 / x = 7

To find the value of x, you can now multiply both sides by x:

560 = 7x

Now, divide both sides by 7 to isolate x:

x = 560 / 7 x = 80

So, the solutions to the equations are: c = 5 a = 2 x = 80