3(x+2/3)-(x-1)=7急

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3(x+2/3)-(x-1)=7急

3(x+2/3)-(x-1)=7急
3(x+2/3)-(x-1)=7
急

3(x+2/3)-(x-1)=7急
3x+2-x+1=7
2x=4
x=2

解
3(x+2/3)-(x-1)=7
3x+2-x+1=7
2x=4
x=2