Question

urgent va rog faceti ecuatiile astea
1)7x-14=5x-2
2)5(x+1)=2(x-1)
3)2(2x-5)=3(x-2)+7
4)4(x-7=5(x+1)+10x

Answer 1

1) 7x-14=5x-2
7x-5x=-2+14
2x=12. X=6
2) 5(x+1)=2(x-1)
5x+5=2x-2
5x-2x=-2-5
3x=-7. X=-7/3
3) 2(2x-5)=3(x-2)+7
4x-10=3x-6+7
4x-3x=-6+7+10
X=11
4) 4(x-7)=5(x+1)+10x
4x-28=5x+5+10x
4x-5x-10x=5+28
-11x=33. X=-3