Respuesta :

jacksonnatalia12
X=13 y= 42.
To find y do 90-48=42
To find x do 5x+7+3x+21+48=180
Adding like terms get you (5x+3x) + (7+21+48)= 8x+76=180 then subtract 76 from 180 which is 8x=104 and divide both sides by 8 and you get 13