Question

Решить (x - 1/4 ) : 2.8 = -4

Answer 1

X-1/4=-4*2.8
x-1/4=-11.2 1/4=0.25
x=-11.2+0.25
x=-10.95
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ответ : - 10,95

Answer 2

To solve the equation, you need to isolate the variable x. Follow these steps:

Step 1: Eliminate the fraction. Step 2: Isolate x by getting rid of any constants or coefficients on the same side of the equation.

Let's solve the equation step-by-step:

Step 1: Eliminate the fraction. To eliminate the fraction, multiply both sides of the equation by 2.8: 2.8 * (x - 1/4) / 2.8 = -4 * 2.8

On the left side, the 2.8 in the numerator and denominator cancel out, leaving: x - 1/4 = -11.2

Step 2: Isolate x by getting rid of any constants or coefficients on the same side of the equation. To get rid of the constant term (-1/4) on the left side, add 1/4 to both sides of the equation:

x - 1/4 + 1/4 = -11.2 + 1/4

On the left side, the -1/4 and +1/4 cancel out, leaving: x = -11.2 + 1/4

Now, to perform the addition on the right side, you need to find a common denominator, which is 4:

x = (-44.8 + 1) / 4

Simplify the right side:

x = -43.8 / 4

Now, divide to find the value of x:

x = -10.95

So, the solution to the equation is:

x = -10.95