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12hailanoi
a fost răspuns

Rezolvati in R ecuatiile:
a) 3(5x-7)=11x-17
b) 17(2-3x)=3(13-19x)
c) 5(10x+3)=7(7x+3)-1
d) 8(3x-2)=5(12-3x)+20x-19
e) 5(3x-7)=22x-17+5(3-2x)
f) 6(5x-4)=15x-18+3(2x+7)

Răspuns :

BUGA1111
a) 15x-21=11x-17
4x=4
x=1
b) 34-51x=39-57x
6x=5
x=5 supra 6
c)50x+15=49x+21-1
x=5
d)24×-16=60-15×+20×-19
19×=76
×=4
e)15×-35=22×-17+15-10×
3×=33
×=11
f)30×-24=15×-18+6×+21
9×=27
×=3

Alte intrebari