妈妈买来3条毛巾和2块香皂共用去32元.每条毛巾价钱是每块香皂的2倍,每块香皂多少元(请用方程解)
问题描述:
妈妈买来3条毛巾和2块香皂共用去32元.每条毛巾价钱是每块香皂的2倍,每块香皂多少元(请用方程解)
答
设每块香皂x元.
2x + 2 × 3x = 32
2x + 6x = 32
8x = 32
x = 32 ÷ 8
x = 4
答:每块香皂4元.