Question

24y-7y+4=291 ответ 21 ? x+2x+12=99 ответ 4 ,проверти пожалуйста!

Answer 1

1)17у=291-4

 17у=287

 у=17

2)3х=87

 х=29

Answer 2

Let's solve the equations step-by-step to verify the given answers.

1. Equation: 24y - 7y + 4 = 291

Combine the y terms:

17y + 4 = 291

Now, isolate the y term on one side:

17y = 291 - 4 17y = 287

Finally, solve for y:

y = 287 / 17 y ≈ 16.88

The solution for y is approximately 16.88, not 21.

2. Equation: x + 2x + 12 = 99

Combine the x terms:

3x + 12 = 99

Now, isolate the x term on one side:

3x = 99 - 12 3x = 87

Finally, solve for x:

x = 87 / 3 x = 29

The solution for x is 29, not 4.

Therefore, both given answers are incorrect. The correct solutions are:

1. y ≈ 16.88
2. x = 29