Question

3,4,5,6va rog rezolvări complete

Answer 1

3.a)5x-7x=-2x
B)5a+3a-6a=2a
c)4b+10b-2b+3b=15b
d)9y-y=8y
e)13m-15m+2m=0
f)23z-11z-z+19z=30z
4.a)2x+3x-7x+12x=10x
b)13y-2y+(6y-3y)-y=14y
c)(16a+12a+5a)-(31a-22a)=33a-9a=24a
d)-5b+3b-2b+8b-b=-4b+7b=11b
5.a)0.5x+0.7x-0.6x+3.5x-1.8x=1.2x-0.6x+3.5x-1.8x=0.6x1.7x=2.3x
b)2.25a-1.65a+(3a-a)-(a-0.7a)=0.6a+2a-0.3a=2.6a-0.3a=2.3
c)3.9y+(2.55y+3.45)+0.1y=3.9y+6y+0.1y=10y
d)0.3b-(1.5b-0.7b+0.2b)+2b=0.3b-0.6b+2b=1.7b
la 6 o să pun ° în loc de la pătrat sau la a 3 ca te uiți tu la care vine 2 ai la care 3ok ???
6.A)5x°+8x°-3x°-2x°+16x°=13x°-5x°+16x°=24x°
b)a°+3a°-8a°+12a°+(29a°-27a°)=4a°-8a°+12a°+2a°=-4a°+14a°=18a°
c)-7a°+4a°+(13a°+A°)-(a°)=-3a°-14a°-a°=11a°-a°=10a°
d)(16x°-2x°-10x°)-(23x°-4x°)=4x°-23x°+4x°=19x°+4x°=-15x°
sper ca team ajutat
a durat ceva dar am reusitt.
sunt 100% convinsa ca e ckrecty