Question

Rezolvați ecuațiile:
a) 7x-9=(3x+1)
b)23x-41=7(x+3)+2
c)3(x-2)+2(x-3)=4x-12
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Answer 1

Răspuns:

7x-3x=1+9 4x=10 x=10/4=5/2

23x-7x=41+21+2

16x=64 x=64/16=4

3x-6+2x-6=4x-12

3x+2x-4x=6+6-12

x=0