X + 5 out of 3 x-x-9 out of 3 equals 5

X + 5 out of 3 x-x-9 out of 3 equals 5

5X/(X+3)-9/(X-3)=5
( 5X*(X-3)-9*(X+3) )/( (X+3)*(X-3) )=5
5X*(X-3)-9*(X+3)=5*( (X+3)*(X-3) )
5X*X-15X-9X-27=5X*X-45
24X+27=45
24X=18
X=0.75

What's three plus nine and five out of nine?

27 of 9 + 5 of 9 = 32 of 9

12 ÷ (1 / 4 + 1 / 3)
(- 15) / (1-1 / 3 and 1-3 / 2) × 6
Step by step, it's easy if it's easy

12 ÷ (1 / 4 + 1 / 3)
=12 ÷ (3 / 12 + 4 / 12)
=12 △ 7 / 12
=12x7 12 / 7
=144 out of 7
(- 15) / (1-1 / 3 and 1-3 / 2) × 6
=-15 ÷ (2 / 6-9 / 6-3) x6
=-15 ÷ (- 10 / 6) x6
=6x6 / 15x10
=90x10 / 6
=54

|-3 and 1 / 3 / | - 1 and 1 / 4 * | - 12|

|-3 and 1 / 3 / | - 1 and 1 / 4 * | - 12|
=(-10/3)/(-5/4)*12
=8/3*12
=8*4
=32

(1-2 / 3-1 / 4) * 12

(1-2 / 3-1 / 4) * 12
=1 * 12-2 / 3 * 12-1 / 4 * 12
=12-8-3
=1

1 out of 12 = () * 3 = () * 4 = () * 6

1 / 12 = (1 / 36) * 3 = (1 / 48) * 4 = (1 / 72) * 6

1 and 1 / 2 of a certain number is 3 less than 3 / 4 of 12

This number = (12 × 3 / 4-3) / (1 + 1 / 2) = 6 × 2 / 3 = 4;
I'm very glad to answer your questions. Skyhunter 002 will answer your questions
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What's four times less than 12

3 is 4 / 3 less than 12, 9 is 4 / 1 less than 12

5 is more than 4 (), 12 is less than 1 / 4
On the same section of the road, car a will drive for 8 hours, car B will drive for 6 hours, and the speed ratio of car a and car B is ()
The volume of a cone with a base area of 24cm is equal to that of a cube with an edge length of 4cm, and the height of the cone is () cm
Judgment: when a section of road is built, the length repaired is inversely proportional to the length not repaired ()
Put 25 grams of salt into 100 grams of water, the salt content of the salt water is ()

The correct answer to this question is:
5 is 25% more than 4 and 12 is 1 / 4 less than 16
In the same section of the road, car a will drive for 8 hours, car B will drive for 6 hours, and the speed ratio of car a and car B is (3:4)
The volume of a cone with a base area of 24cm is equal to that of a cube with an edge length of 4cm, and the height of the cone is (8) cm
Judgment: when building a section of road, the length of the repaired road is inversely proportional to the length of the unpaved road
Put 25 grams of salt into 100 grams of water, the salt content of the salt water is (20%)

If a mathematician advances 1 / 4 less than 5 / 12 of a number, he can find the number
1 / 4 is more than 7 / 12 of a number. Find the number

1/4=5/12x-4 x=51/5
1/4=7/12x-4 x=51/7
I don't know whether you have 5 or 7, so I'll forget both