
2/3(1 1/2x+3/5)−4/5(5/12x−1/2)=1 3/5


Ответы на вопрос

Ответ:
2/3(1 1/2x+3/5)- 4/5(5/12x-1/2)=1 3/5
x+2/5-1/3x+2/5=8/5
2/3x+4/5=8/5
2/3x=8/5-4/5
2/3x=4/5
x=4/5*3/2
x=6/5
x=1 1/5
Пошаговое объяснение:



To solve the equation, let's first simplify the left-hand side:
Distribute the coefficients in both terms: (2/3) * (1 + 1/2x + 3/5) - (4/5) * (5/12x - 1/2) = 1 3/5
Simplify within the parentheses: (2/3) * (1 + 1/2x + 3/5) - (4/5) * (5/12x - 1/2) = (2/3) * (1) + (2/3) * (1/2x) + (2/3) * (3/5) - (4/5) * (5/12x) + (4/5) * (1/2)
Further simplify: = 2/3 + (1/3)x + 2/5 - (1/3)x + 2/5
The x terms cancel out: = 2/3 + 2/5 + 2/5
Add the fractions: = 2/3 + 4/5
To add these fractions, we need a common denominator, which is 15 in this case:
= (10 + 12) / 15 = 22 / 15
Now, the equation becomes:
22/15 = 1 3/5
To convert the mixed number (1 3/5) to an improper fraction, we multiply the whole number (1) by the denominator (5) and add the numerator (3) to get the new numerator. So, 1 3/5 = (1 * 5 + 3) / 5 = 8/5.
Now, the equation is:
22/15 = 8/5
To solve for x, cross-multiply:
22 * 5 = 8 * 15
110 = 120
Since 110 is not equal to 120, there is no solution to the equation. Therefore, the original equation is inconsistent, and there is no value of x that satisfies it.


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