Question

X + 4/21 = 2/3 + 2/7​

Answer 1

Відповідь:

х = 16/21

Покрокове пояснення:

X + 4/21 = 2/3 + 2/7​

Обчислюємо суму

х + 4/21 = 20/21

Переносимо у праву частину

х = 20/21 - 4/21

Обчислюємо

х = 16/21

Answer 2

To solve the equation, we'll simplify both sides by finding a common denominator for the fractions involved.

On the right side of the equation, the fractions 2/3 and 2/7 already share a common denominator of 21. So we can rewrite the equation as:

X + 4/21 = 2/3 + 2/7

Now, let's find a common denominator for the fractions on the left side. The denominators 21 and 1 (from 4/21) share a common multiple of 21. So we don't need to make any changes to the left side.

Now, let's add the fractions on the right side:

X + 4/21 = (2/3) + (2/7) X + 4/21 = (14/21) + (6/21)

Now that we have a common denominator of 21 on the right side, we can combine the fractions:

X + 4/21 = 20/21

To isolate the variable X, we'll subtract 4/21 from both sides:

X + 4/21 - 4/21 = 20/21 - 4/21 X = 16/21

Therefore, the solution to the equation is X = 16/21.