Răspunsuri

2014-09-24T19:27:47+03:00
-5*[-3*(x-12)-8]-12=-2
-3*(x-12)-8=-2
x-12=-2
x=10
2014-09-24T19:33:14+03:00
3·{-5·[-3·(x-12)-8]-12}=-6
-5·[-3·(x-12)-8]-12=-6:3
-5·[-3·(x-12)-8]-12=-2
-5·[-3·(x-12)-8]=-2+12
-5·[-3·(x-12)-8]=10
-3·(x-12)-8=10:(-5)
-3·(x-12)-8=-2
-3·(x-12)=-2+8
-3·(x-12)=6
x-12=6:(-3)
x-12=-2
x=-2+12
x=10