Respuesta :
p-1=-2
add 1 to each side
p=-1
y+5=-11
subtract 5 from each side
y=-16
20=4x
divide by 4 on each side
x=5
b/-4=-9
multiply by -4 on each side
b=36
add 1 to each side
p=-1
y+5=-11
subtract 5 from each side
y=-16
20=4x
divide by 4 on each side
x=5
b/-4=-9
multiply by -4 on each side
b=36