已知x,y互为相反数,求式子3x-10+3y+5x/y(y不等于0)
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已知x,y互为相反数,求式子3x-10+3y+5x/y(y不等于0)
已知x,y互为相反数,求式子3x-10+3y+5x/y(y不等于0)
已知x,y互为相反数,求式子3x-10+3y+5x/y(y不等于0)
3x-10+3y+5x/y=3x+3y-10+5x(-1)=0-10-5=-15