Question

3y+72=0.
-8a+800=0.
22b+440=0.
scrieti cat este egal y,a,b pe lung.

Answer 1

3y+72=0
3y = -72 
y = -72 : 3 
y = - 24

-8a+800=0
-8a = - 800
a = - 800 : (-8)
a = 100

22b+440=0
22b = - 440
b = - 440 : 22
b = - 20 

Answer 2

3y+72=0=>3y=-72=>y=-72:3=>y=-24

-8a+800=0=>-8a=-800 I(-1)=>a=800:8=>a=100

22b+440=0=>22b=-440=>b=-440:22=>b=- 20