规定a❤b=a×b+a+b,例:3❤4=3×4+3+4=19,则当(χ❤2)❤1=29时,χ=?
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规定a❤b=a×b+a+b,例:3❤4=3×4+3+4=19,则当(χ❤2)❤1=29时,χ=?
规定a❤b=a×b+a+b,例:3❤4=3×4+3+4=19,则当(χ❤2)❤1=29时,χ=?
规定a❤b=a×b+a+b,例:3❤4=3×4+3+4=19,则当(χ❤2)❤1=29时,χ=?
因为a❤b=a×b+a+b,(χ❤2)❤1=29;所以(χ❤2)+(χ❤2)+1=2(χ❤2)+1=29;所以(χ❤2)=14.
又因为(χ❤2)=2x+x+2=3x+2=14,所以x=4