4. x+70=-100
x= -100-70
x= -170
y+8=2000
y=2000-8
y=1992
z+29= -718
z= -718-29
z= -747
5. 3 × x = 81
x =81:3
x= 27
(-11) × y =121
y= 121:(-11)
y= -11
(-35)× z = -210
z= (-210):(-35)
z= 6
6.x : (-8)= -20
x= (-20) × (-8)
x= 160
y:38=10
y=38×10
y=380
z:(-19)= -18
z= (-18)×(-19)
z=342
Sper ca te-am ajutat
