10x-7x=3.7*63x=22.2x=7.4
10x-7x=3.7*63x=3.7*6x=3.7*6÷3x=7.4
10x-7x=3.7*63x=22.2x=22.2/3x=7.4
3x=22.2x=7.4
解:3x=22.2 3x÷3=22.2÷3 x=7.4 解:3x=22.2 3x÷3=22.2÷3 x=7.4