Question

X+1 7x-6 9-x ----- + ----------- + ------------- = 12 5 10

Answer 1

Ответ:

Пошаговое объяснение:

5*(x + 1) + 2*(7x-6) - 9 + x = 1*10

5x + 5 + 14x - 12 - 9 + x = 10

20x - 16 = 10

20x = 10 + 16

20x = 26

x = 26 : 20

x = 1,3

Answer 2

To solve the equation:

(X + 1)/5 + (7x - 6)/10 + (9 - x)/12 = 12

Let's find a common denominator for all the fractions, which in this case is 60. Then we can rewrite the equation as follows:

12(X + 1) + 6(7x - 6) + 5(9 - x) = 12 * 60

Now we can simplify and solve for x:

12X + 12 + 42x - 36 + 45 - 5x = 720

Combine like terms:

12X + 42x - 5x + 12 - 36 + 45 = 720

(12 + 42 - 5)x + 21 = 720

49x + 21 = 720

Subtract 21 from both sides:

49x = 720 - 21

49x = 699

Divide both sides by 49:

x = 699/49

x = 14.27 (rounded to two decimal places)

Therefore, the value of x that satisfies the equation is approximately 14.27.