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5x+5=4x+6
5x=4x+1
1x=1
x=1
b)9x-10-5x+12=x+6-3x+10
4x+2=-2x+16
4x=-2x+14
6x=14
x=7/3
2.33333333
c)7-3(x+1)=x-3(x-1)
-3-3+7=x+-3x+3
-3x+4=-2x+3
-3=-2x-1
-1x=-1
x=1
d)5-(2x+1)=9-(2+3x)
-2x-1+5=-(3x+2)+9
-2x+4=--3x-2+9
-2x+4=-3x+7
-2x=-3x+3
1x=3
x=3
e)5x-2(x-6)=2x+2(x-1)
5x+-2x+12=2x+2x-2
3x+12=4-2
3x=4x-14
-1x=-14
x=14
f)3x+1(x+3)=(x+1)
3x+-x-3+1=(x+1)
2x-2=(x+1)
2x-2=x+1
2x=x+3
1x=3
x=3