Question

比а的7倍多3的數(shù)是

7a+3

．

Answer 1

分析：根據(jù)題意，a的7倍為7a，多3即7a+3．

解答：解：根據(jù)題意得：
比a的7倍多3的數(shù)是：7a+3．
故答案為：7a+3．

點(diǎn)評(píng)：理解題干條件，得出數(shù)量關(guān)系是解答本題的關(guān)鍵．