5x-2(x-5)=52解:5x-2x+10=525x-2x=52-103x=42x=42÷3x=14
5x-2(x-5)=52答:5x-2x+10=52 3x+10=52 3x=42 x=14
解:5x-2x+10=523x=42x=14
5x-2(x-5)=525x-2x+10=523x+10=523x=52-103x=42x=14