Question

14х-9х=125 15у+25у=120 29у-17у=124*4 13х+5х=108:2 уравнение столбиком.

Answer 1

1) 5х=125 х=125:5 х = 25 2) 40у=120 у=120:40 у = 3 3) 12у=496 у=496:12 у=41 целая 4/12 или у=41 целая 1/3 4) 18х=54 у=54:18 у=3

Answer 2

To solve these equations, we can use the column method, also known as the "stacking method". We write the equation with the variables aligned and perform the same operations on both sides of the equation to isolate the variable.

For the first equation:

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14x - 9x = 125
  5x     = 125
  x     = 125 / 5
  x     = 25

Therefore, the solution is x = 25.

For the second equation:

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15y + 25y = 120
40y      = 120
y       = 120 / 40
y       = 3

Therefore, the solution is y = 3.

For the third equation:

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29y - 17y = 124 * 4
12y      = 496
y        = 496 / 12
y        = 41 1/3

Therefore, the solution is y = 41 1/3.

For the fourth equation:

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13x + 5x = 108 / 2
18x     = 54
x      = 54 / 18
x      = 3

Therefore, the solution is x = 3.