Question

-7х=5 ; 4х=0 ; 0•х=4

Answer 1

-7х=5
х=5:(-7)
х=-5/7

4х=0
х=0:4
х=0

0*х=4
нет решения ,на ноль делить нельзя

Answer 2

To solve these equations for the value of x, let's go through each one step by step:

1. -7x = 5 To solve for x, we need to isolate it on one side of the equation. The first step is to get rid of the coefficient -7 in front of x. We can do this by dividing both sides of the equation by -7: x = 5 / (-7) x = -5/7

2. 4x = 0 In this case, we also need to isolate x. The coefficient 4 is in front of x, so we'll divide both sides of the equation by 4: x = 0 / 4 x = 0

3. 0•x = 4 This equation is interesting because anything multiplied by 0 is always equal to 0. Therefore, no matter what value x takes, the left side will always be 0. But on the right side, we have the value 4, which is not equal to 0. So, this equation has no solution.

To summarize the solutions for each equation:

1. x = -5/7
2. x = 0
3. No solution (the equation is not valid)