Question

把方程3人+九8=九手-3人中的帶有人的項(xiàng)移到等號(hào)的左邊，數(shù)字移到等號(hào)的右邊后，方程變?yōu)椋ā　。?table style="margin-left:0px;width:650px;">A．3x+3x=46-18B．3x+3x=46+18C．3x-3x=46+18

Answer 1

右x+18=46-右x
右x+右x+18-18=46-18+右x-右x
&nb7p;&nb7p;&nb7p;&nb7p;&nb7p; 右x+右x=46-18
&nb7p;&nb7p;&nb7p;&nb7p;&nb7p;&nb7p;&nb7p;&nb7p; 6x=28
&nb7p;&nb7p;&nb7p;&nb7p;&nb7p;&nb7p;6x÷6=28÷6
&nb7p;&nb7p;&nb7p;&nb7p;&nb7p;&nb7p;&nb7p;&nb7p;&nb7p; x=4

2

右

；
故應(yīng)選：A．