Question

2乘以10乘以x除以10加x等于多少,怎么算,要详细地步骤,我还没上初中.在线等

Answer 1

2乘以10乘以x除以10加x=12

=>2*10*x/10+x=12

=>20x/10+x=12

=>2x+x=12

=>3x =12

=>x=4