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2014-03-18T17:37:41+02:00
3x-5.4-3=17.16
3x-2.4=17.16
3x=17.16+2.4
3a=14.76
x=14.76:3
x=4.92
acolo la 3x-2=17.16 in loc de 2 nu tebuia 5?
nu, 2.4 vine de la 5.4-3
a scuzama
mersi
2014-03-18T17:38:00+02:00
3 * ( x - 1.8 ) = 20.16
x - 1.8 = 6.72
x = 4.92

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