Question

{3x+2y+58
{x+y+23

$3x+2y+58\\\\\\{x+y=23$


Qual o valor de X e Y?

Com passo a passo

Answer 1

3x+2y=58

x+y=23.(-2)

3x+2y=58

-2x-2y=-46

x=12

x+y=23

12+y=23

y=23-12=11

confere:

x+y=23

12+11=23

23=23