Viết đoạn văn ngắn về tiếng anh những công việc làm khi rảnh rỗi

life 2200 right now look pretty good because on how quickly humans are advansing, life will be a breeze. most by by then would have out lawed disese.most wouldn't have to work anymore beacuse everything would be free. the econamy for most countires would be really good, also by then u.s.a would have probably would have expaned its borders.

so that counculeds my thoghts of how 2200 is you for reading

x=4, y=4

step-by-step explanation:

y=2x-4;

x+2y=12

we can use substitution since the first equation is solved for y

where ever you see y in the second equation, replace it with 2x-4

x + 2(2x-4) = 12

distribute the 2

x+4x-8 = 12

combine like terms

5x-8=12

add 8 to each side

5x-8+8=12+8

5x=20

divide by 5

5x/5 = 20/5

x =4

we still need to solve for y

y = 2x-4

we know x =4

y = 2(4) -4

y = 8-4

y=4

all of the statements cuz