2 la puterea x egal 16 3 la puterea x egal 25 5 la putera x egal 134 6(3x plus 4)plus 15 egal201 17(2x plus 3)minus 25 egal 366 9x plus 7 ori 6 egal 3x minus 18 13 la puterea 3x egal 13 la puterea 30 cum aflu x????????am lucrare miine va rog

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Răspunsuri

2014-11-12T19:21:27+02:00
2 la put x=16  2 la put 2 la put 4 x=4

34x+51-25=366 34x+26=366 34x=366-26 34x=340 x=340/34 x=10
9x+7*6=3x 9x+42=3x 9x-3x=-42 6x=-42 x=-42/6 x=-7
scuze nue bunasta
9x+7*6=3x-18 9x+42=3x-18 9x-3x=-18-42 6x=-60 x=-10
13 la put 3x=13 la put 30 3x=30 (deoarece au aceasi basa 13) 3x=30 x=30/3 x=10
2014-11-12T19:28:14+02:00
(3x+4) +15 = 201
(3x+4) = 201 - 15
3x+4 = 196
3x = 196 -4
3x= 192
x= 192:3
x=64
2 5 2