Question

X/2 + Y/3 = 5
4X - Y = 18

*ME AJUDEM NESSA QUESTÃO PFVR! ♡

Answer 1

X/2 + Y/3 = 5

4X - Y = 18

MMC (2,3) = 6

(3x + 2y)/6 = 6.5/6

3x + 2y = 30

4x - y = 18 (2)

3x + 2y = 30

8x - 2y = 36

3x + 2y = 30 (+)

------------------------

11x = 66

x = 66/11

x = 6

4x - y = 18

4.6 - y = 18

24 - y = 18

24 - 18 = y

6 = y

y = 6

R.: x = 6; y = 6

Answer 2

3x+2y=30
4x-y=18
3x=30-2y

x=30-2y/3

120-8y/3-y=18

120-8y-3y=54

-11y=-66

y=-66/-11

y=6

x=30-2.6/3

x=30-6/3

x=24/3

x=8

espero ter ajudado!