-2²÷4/9+|-7|-3×(-1/3)

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-2²÷4/9+|-7|-3×(-1/3)-2²÷4/9+|-7|-3×(-1/3)-2²÷4/9+|-7|-3×(-1/3)-2²÷4/9+|-7|-3×(-

-2²÷4/9+|-7|-3×(-1/3)
-2²÷4/9+|-7|-3×(-1/3)

-2²÷4/9+|-7|-3×(-1/3)
-2²÷4/9+|-7|-3×(-1/3)
=-4*9/4+7+1
=-9+8
=-1