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afla valoarea necunoscutei : 100-(66+3x9)+8x3=3xi+1=

Răspuns :

100-(66+3•9)+8•3=3i+1
100-(66+27)+24=3i+1
100-93+24=3i+1
7+24=3i+1
31=3i+1
3i=30
i=30/3
i=10.


I hope I helped you :)
100-93+3x8 egal 7+24 egal 31egal 3xi+1.
30 egal 3xi
xi egal 10
xi egal 2x5 sau 5x2