Question

Решить уравнение (68.7+х):28 1/90=3

Answer 1

Ответ:

68,7+х=28 1/90*3

68,7+х=84

х=84-68,7

х=15,3

Пошаговое объяснение:

Answer 2

Ответ:

х=46\3=15 1\3

Пошаговое объяснение:

(68,7+х):28 1/90=3

68,7+х=2521\30

х=2521\30-687\10

х=46\3=15 1\3

Answer 3

To solve the equation, let's first simplify the left-hand side by performing the operations step by step:

(68.7 + x) / 28 1/90 = 3

Step 1: Convert the mixed number into an improper fraction. 28 1/90 = (28 * 90 + 1) / 90 = 2521 / 90

Step 2: Rewrite the equation with the simplified fraction. (68.7 + x) / (2521/90) = 3

Step 3: Invert the divisor and multiply both sides by it to isolate (68.7 + x). (68.7 + x) = 3 * (2521/90)

Step 4: Simplify the right-hand side. (68.7 + x) = 3 * 28.0111111...

Step 5: Calculate the right-hand side. (68.7 + x) ≈ 84.033333...

Step 6: Now, isolate x by subtracting 68.7 from both sides. x = 84.033333... - 68.7

Step 7: Calculate x. x ≈ 15.333333...

So the approximate solution to the equation is x ≈ 15.333333... or x ≈ 15.33 (rounded to two decimal places).