
2 19/22 : (х - 1) = 6 3/4 4 5/7


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второй вариант уравнения на фото
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To solve the equation 2 19/22 * (x - 1) = 6 3/4 4 5/7, we need to follow these steps:
Step 1: Convert the mixed numbers to improper fractions. Step 2: Perform the multiplication on the left-hand side. Step 3: Solve for the variable x.
Let's start with Step 1:
2 19/22 = (2 * 22 + 19) / 22 = 63 / 22 6 3/4 = (6 * 4 + 3) / 4 = 27 / 4 4 5/7 = (4 * 7 + 5) / 7 = 33 / 7
Now, the equation becomes:
(63/22) * (x - 1) = 27/4 + 33/7
Next, let's get a common denominator for the right-hand side:
The least common multiple (LCM) of 4 and 7 is 28.
(27/4) * (7/7) = 189/28 (33/7) * (4/4) = 132/28
Now, the equation becomes:
(63/22) * (x - 1) = 189/28 + 132/28
Step 2: Perform the addition on the right-hand side:
(189/28 + 132/28) = 321/28
The equation becomes:
(63/22) * (x - 1) = 321/28
Step 3: Solve for x:
To solve for x, we need to isolate it on one side of the equation. To do that, we can divide both sides of the equation by (63/22):
[(63/22) * (x - 1)] / (63/22) = (321/28) / (63/22)
The (63/22) on the left-hand side cancels out, and we are left with:
x - 1 = (321/28) / (63/22)
Now, we can simplify the right-hand side by dividing the fractions:
x - 1 = (321/28) * (22/63)
x - 1 = 7222/1764
Now, to solve for x, we'll isolate it by adding 1 to both sides:
x = 7222/1764 + 1
To add the fractions, we need a common denominator, which is 1764:
x = (7222 + 1764) / 1764
x = 8986 / 1764
Finally, we can simplify the fraction:
x = 4493 / 882
So, the solution for the equation is:
x = 4493/882


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