Respuesta :

Solve y: 6.3 = 0.9y
6.3/0.9 = 0.9y/09
y = 7

Solve x: x + 7.72 = 19
x + 7.72-7.72 = 19 - 7.72
x = 11.28

What is y? 7 What is x? 11.28
6.3=0.9y ....6.3/0.9=7.......y=7
x+7.72=19....19 - 7.72= 11.28.......x=11.28