4) 4x+12=5x-10 -x=-22 x=22
4) 6-3x=2x -5x=-6 x=6/5
5) 5x-5=3x+9 2x=14
5) 3x+12-5x=105 -2x=105-12 -2x=93 x=-93/2
6) 3x+7x=84 10x=84 x=42/5
6) 54x-30-12-20x-24x+6=24 10x-36=24 10x=60 x=6
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Answers & Comments
4) 4x+12=5x-10 -x=-22 x=22
4) 6-3x=2x -5x=-6 x=6/5
5) 5x-5=3x+9 2x=14
5) 3x+12-5x=105 -2x=105-12 -2x=93 x=-93/2
6) 3x+7x=84 10x=84 x=42/5
6) 54x-30-12-20x-24x+6=24 10x-36=24 10x=60 x=6