Question

Решите уровнение а)5+х=-7 б)у-2=7 в)3-х=5 г)х+14=10

Answer 1

А)    5+х = -7
        х  = -7 - 5
        х = -12

б) у - 2 = 7
    у = 7 + 2
     у = 9

в)  3 - х = 5
     х = 5 - 3
    х = 2

г)  х + 14 = 10
    х = 10 - 14
   х =  - 4

Answer 2

Решение уравнений:

а) 5x = -7

To solve for x, we can divide both sides of the equation by 5:

5x / 5 = -7 / 5

This simplifies to:

x = -7/5

So the solution to the equation 5x = -7 is x = -7/5.

б) y - 2 = 7

To solve for y, we can isolate y by adding 2 to both sides of the equation:

y - 2 + 2 = 7 + 2

This simplifies to:

y = 9

So the solution to the equation y - 2 = 7 is y = 9.

в) 3 - x = 5

To solve for x, we can isolate x by subtracting 3 from both sides of the equation:

3 - x - 3 = 5 - 3

This simplifies to:

-x = 2

To solve for x, we can multiply both sides by -1 to get rid of the negative sign:

(-1) * (-x) = (-1) * 2

This simplifies to:

x = -2

So the solution to the equation 3 - x = 5 is x = -2.

г) x + 14 = 10

To solve for x, we can isolate x by subtracting 14 from both sides of the equation:

x + 14 - 14 = 10 - 14

This simplifies to:

x = -4

So the solution to the equation x + 14 = 10 is x = -4.

Therefore, the solutions to the given equations are: a) x = -7/5, б) y = 9, в) x = -2, г) x = -4.