Question

Решите уравнение: а) (-1)*0,7*(-х)=(-35):0,5 б) -х*0,25=-15*25 Пожалуйста помогите

Answer 1

А) 0,7х=-70
    х=-100
б) -0,25х=-375
     х=1500

Answer 2

А) 0,7 х = - 7 ,следовательно, х = - 7 / 0,7 , х = - 10                                          б) - 0,25 х = - 375 ,следовательно, х = - 375 / - 0,25 , х = 15

Answer 3

Solving the Equations

a) To solve the equation (-1)*0,7*(-x)=(-35):0,5, we can follow these steps:

1. Multiply -1 by 0.7 and then by -x. 2. Divide the result by 0.5. 3. Set the expression equal to -35 and solve for x.

Let's solve it step by step:

1. Multiply -1 by 0.7 and then by -x: - (-1)*0.7*(-x) = 0.7x

2. Divide the result by 0.5: - 0.7x / 0.5 = 1.4x

3. Set the expression equal to -35 and solve for x: - 1.4x = -35 - x = -35 / 1.4 - x = -25

So, the solution to the equation (-1)*0,7*(-x)=(-35):0,5 is x = -25.

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b) Now, let's solve the equation -x*0,25=-15*25.

1. Multiply -x by 0.25: - -0.25x

2. Set the expression equal to -15*25 and solve for x: - -0.25x = -375 - x = -375 / -0.25 - x = 1500

So, the solution to the equation -x*0,25=-15*25 is x = 1500.

I hope this helps! If you have any more questions or need further assistance, feel free to ask.