tìm các số nguyên x,y,z biết:3z-2y/2015=2x-5z/2016=5y-3x/2017 và y.z<3x các bạn giải rõ ràng giúp mk nha

Làm hết bài 4 nhé. :3333333333333

Please help me with this question turn into a simple past buy => help => remember => get => send => think => talk =>

Giúp mk vơi Tìm các cặp số (x,y) nguyên thỏa mãn: xy - 2y - 3 = 3x - x^2

Check đáp án hộ em với ạ!! healthcare growth shortages earnings disease drought megacity accommodation peaceful crime 1. London is( a) _PEACEFUL_________. 2. The long hot summer has led to serious water _SHORTAGES___________. 3. To have hundreds of homeless people sleeping in the streets of a rich city like The first symptom of the _DISEASE___________ is a very high temperature. 4. A __MEGACITY__________ is a very large city with big population. 5. Average _EARNINGS___________ for skilled workers are rising. 6. _DROUGHT___________ has affected many countries in Africa after a long period of dry weather. 7. Nuclear power can be used for _CRIME___________ or military purposes. 8. The government is trying to limit population __GROWTH__________. 9. __EARNINGS__________ workers who offer medical care to others are some of the lowest paid people in the country. 10. We lived in rented _ACCOMMDATION___________ before buying this house.

đặt f(n) = (n^2 + n+1)^2 +1 xét dãy số Un sao cho Un=[f(1).f(3).f(5)....f(2n-1)]/[f(2).f(4).f(6).....f(2n)] tìm limUn(n nhân căn un) . giúp mik vs ạ mik cảm ơn

tìm x,y,z thuộc N* để :3^x+2^y=1+2^z

Help me please ! ( Bài làm đầy đủ )

Mong mọi người giúp đỡ em .mong mọi người giải giùm em .

a + b + a = 8 b + c + a = 9 b + a + b = 10 Tìm a,b,c