某数减去8,再乘以4,最后加上7,得11.问这个数先加上7,再乘以4,最后减去8,得多少?.L8Z)\.a.g2\3d/F(l
算式:提示8P5B3H-T+N(i;V/s,`:c0]1m2U*Q.L8Z)\.a.g2\3d/F(l
答:得4E.E)i3p。.L8Z)\.a.g2\3d/F(l