Question

2/7*х+3/7*х=2 7/14 решить уравнение

Answer 1

Ответ:

3,5

Пошаговое объяснение:

2/7*х+3/7*х=2 7/14. |•14

4х+6х=35

10х=35. |•0,1

х=3,5

Answer 2

To solve the equation, we need to find the value of x that makes the equation true. Let's proceed with the solution:

Step 1: Combine the terms on the left-hand side by finding the common denominator for the fractions. The common denominator is 7.

(2/7)x + (3/7)x = 2 7/14

Step 2: Add the two fractions with x:

(2/7)x + (3/7)x = (2/7 + 3/7)x = (5/7)x

Step 3: Now, the equation becomes:

(5/7)x = 2 7/14

Step 4: Convert the mixed number (2 7/14) to an improper fraction. The improper fraction is (2 * 14 + 7) / 14 = 28/14.

The equation now becomes:

(5/7)x = 28/14

Step 5: To solve for x, multiply both sides of the equation by the reciprocal of (5/7), which is (7/5).

x = (28/14) * (7/5)

Step 6: Simplify the expression:

x = 4

So, the solution to the equation is x = 4.