-2n- (3n-1)如何化简
问题描述:
-2n- (3n-1)如何化简
只要化简
答
-2n- (3n-1)
=-2n-3n+1
=-5n+1
-2n- (3n-1)如何化简
只要化简
-2n- (3n-1)
=-2n-3n+1
=-5n+1