Răspuns:
a)3x= -5
x = -5\3
b) 3x+ 6 + 4x + 20 = 7
7x + 26 = 7
7x= 7- 26
7x = - 19
x = - 19 \7
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Răspuns:
a)3x= -5
x = -5\3
b) 3x+ 6 + 4x + 20 = 7
7x + 26 = 7
7x= 7- 26
7x = - 19
x = - 19 \7