5-7/2x=3/2 1/5x+4乘7/10=7/2
问题描述:
5-7/2x=3/2 1/5x+4乘7/10=7/2
答
①5-7/2x=3/2 5-3/2 =7/2x 7/2=7/2x x=1 ②1/5x+4乘7/10=7/2 1/5x+14/5=7/2 x+14=35/2 x=35/2 -28/2 x=7/2
5-7/2x=3/2 1/5x+4乘7/10=7/2
①5-7/2x=3/2 5-3/2 =7/2x 7/2=7/2x x=1 ②1/5x+4乘7/10=7/2 1/5x+14/5=7/2 x+14=35/2 x=35/2 -28/2 x=7/2