Question

Determinați soluțiile ecuatiilor
a)3(x-1)=9
b)2(x+3)-5=x+6
c)3x+4(x+1)=5(x-1)+3
d)2(2x+3)-3(1+x)=3(1-x)+2(x+5)
e)x-2-2(x+3)=3(3x-1)-4(2x+1)
f)2x+3(x-5)+1=2(2x+1)-3(x-1)

Answer 1

a) 3(x-1)=9
3x-3=9
3x=9-3
3x=6
x=6:3
x=2
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