? i put no space because i want to challenge people goodluck
i am starting with 30 points the faster people answer the more points i add ex: answer in 1 min the next question will be 21 points and so on but the longer it takes to answer the less points ex: it takes 5 min to answer 5 points go down

also if u do not know why i am doing this just ask

OK please tell me then why r u asking this question

Vut u say

Explanation:

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

a) madame podtochina used witchcraft to make it disappear.