
2*(3 3/5 -x) +5 1/5=7 2/3


Ответы на вопрос




To solve the equation 2(3 3/5 - x) + 5 1/5 = 7 2/3, you can follow these steps:
Step 1: Simplify the mixed numbers on both sides of the equation:
3 3/5 = 5/5 + 3/5 = 8/5 5 1/5 = 5/5 + 1/5 = 6/5 7 2/3 = 6/3 + 2/3 = 8/3
Now, the equation becomes:
2(8/5 - x) + 6/5 = 8/3
Step 2: Distribute the 2 on the left side of the equation:
(2 * 8/5) - (2 * x) + 6/5 = 8/3
Step 3: Simplify further:
(16/5) - (2x) + 6/5 = 8/3
Step 4: Subtract 6/5 from both sides of the equation to isolate the terms containing x:
(16/5) - (2x) = 8/3 - 6/5
Step 5: Find a common denominator on the right side and subtract:
(16/5) - (2x) = (40/15) - (18/15)
Step 6: Continue to simplify the right side:
(16/5) - (2x) = (22/15)
Step 7: To get rid of the fractions, you can multiply both sides of the equation by the least common multiple (LCM) of 5 and 15, which is 15:
15 * [(16/5) - (2x)] = 15 * (22/15)
Step 8: Distribute the 15 on both sides:
(15 * 16/5) - (15 * 2x) = 22
Step 9: Simplify further:
48 - 30x = 22
Step 10: Now, isolate the term containing x by subtracting 48 from both sides:
-30x = 22 - 48
-30x = -26
Step 11: Finally, solve for x by dividing both sides by -30:
x = (-26) / (-30)
x = 13/15
So, the solution to the equation is:
x = 13/15


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