Question

quanto e x-2y=-16
8x+3y=62


por favor

Answer 1

x-2y=-16 >>> x=-16+2y
8x+3y=62

8(-16+2y)+3y=62
-128+16y=62
16y=62+128
16y=190
y=190/16
y= 11,875

x-2(11,875)=-16
x-23,75=-16
x=-16+23,75
x=7,75