Exercitiul 2 va rog repedeeeee! Dau coroana
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Răspuns:
a) X = 1
b) x-1 = 12
x=11
c) 2x+1= 7
2x = 8
x=4
d) 2x = 10
x= 5
e) x= 1
f) 3(x+2) = 4(x-1)
3x+6 = 4x-4
x = 10
Explicație pas cu pas: