Question

3y-(y-19)=29, и 2x+15=2(x+1)+11

Answer 1

3у-(у-19)=29
3у-у+19=29
2у=10
у=5

2х+15=2(х+1)+11
2х+15=2х+2+11
0= -2
уравнение решить нельзя

Answer 2

To solve the equations:

1. 3y - (y - 19) = 29

Let's simplify the equation step by step:

3y - y + 19 = 29

Combine like terms:

2y + 19 = 29

Subtract 19 from both sides of the equation:

2y = 29 - 19

2y = 10

Divide both sides by 2 to isolate y:

y = 10 / 2

y = 5

Therefore, the solution to the equation is y = 5.

2. 2x + 15 = 2(x + 1) + 11

Expand the expression on the right side of the equation:

2x + 15 = 2x + 2 + 11

Combine like terms:

2x + 15 = 2x + 13

Subtract 2x from both sides of the equation:

15 = 13

The equation is inconsistent because 15 cannot equal 13. In this case, there is no solution to the equation.

Therefore, the second equation has no solution.