Question

1)(X)+20,9=22 2)315-(x)=288 3)(x)-74,6=9,4 4)(x)-21,9=6 целых 2/3 5)100,3+(х)=101 целых 8/9

Answer 1

1)
$x = 22 - 20.9$
$x = 1.1$
2)
$x = 315 - 288$
$x = 27$
3)
$x = 9.4 + 74.6$
$x = 84$
4)
$x = 6 \frac{2}{3} + 21.9$
$x = 28 \frac{17}{30}$

5)
$x = 101 \frac{8}{9} - 100.3$
$x = 1 \frac{53}{90}$

Answer 2

To solve each equation for x, follow these steps:

1. (X) + 20.9 = 22 Subtract 20.9 from both sides to isolate x: (X) = 22 - 20.9 (X) = 1.1

2. 315 - (X) = 288 Subtract 288 from both sides to isolate x:

• (X) = 288 - 315
• (X) = -27 To solve for x, we multiply both sides by -1 to change the sign: X = 27

3. (X) - 74.6 = 9.4 Add 74.6 to both sides to isolate x: (X) = 9.4 + 74.6 (X) = 84

4. (X) - 21.9 = 6 2/3 To make it easier to solve, convert 6 2/3 to a decimal: 6 2/3 = 6.66667 (rounded to five decimal places) Add 21.9 to both sides to isolate x: (X) = 6.66667 + 21.9 (X) = 28.56667 To simplify the result, you can round it to an appropriate decimal place.

5. 100.3 + (X) = 101 8/9 To make it easier to solve, convert 101 8/9 to a decimal: 101 8/9 = 101.88889 (rounded to five decimal places) Subtract 100.3 from both sides to isolate x: (X) = 101.88889 - 100.3 (X) = 1.58889 To simplify the result, you can round it to an appropriate decimal place.

Therefore, the solutions for each equation are as follows:

1. X = 1.1
2. X = 27
3. X = 84
4. X ≈ 28.57 (rounded to two decimal places)
5. X ≈ 1.59 (rounded to two decimal places)