红叶服装厂今年比去年多缴纳税收490万元，今年缴纳税收1630万元，去年缴纳税收多少万元？-U*a'N0g(Z3B,H5J
算式：提示+y.x3p:n4g6e'c/j6}-U*a'N0g(Z3B,H5J
答：去年缴纳税收6X-N9q(L万元。-U*a'N0g(Z3B,H5J