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2)x=1
3)x=-1
-5x=10
x=-2
-4(x-2)+2(x+1)=12
-4x+8+2x+2=12
-2x=2
x=-1
5*(2x-2)=4*(2x-3)
10x-10=8x-12
2x=-2
x=-1
2x-7=5+5
-5x=20/:(-5)
x=-2
-4(x-2)+2(x+1)=12
-4x+8+2x+1=12
-4x+2x=-8-1+12
-2x=3/:(-2)
x=-1½
5(2x-2)=4(2x-3)
10x-10=8x-12
10x-8x=10-12
2x=-2/:2
x=-1