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Rezolvati ecuatiile: a) (3x+2)/7=1/8. b) (6x+2)/19=(4x+2)/19 c)(2x)/7-(x+1)/2=11

Răspuns :

Renatemambouko
a) (3x+2)/7=1/8
24x+16=7
24x=9
x=9/24=3/8

b) (6x+2)/19=(4x+2)/19
 6x+2=4x+2
 6x=4x
x=0

c)(2x)/7-(x+1)/2=11
4x-7x-7=154
-3x=161
x=-161/3

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