8X-30=3X+20 = = =
问题描述:
8X-30=3X+20 = = =
答
8X-30=3X+20
8x-3x=30+20
5x=50
x=10
8X-30=3X+20 = = =
8X-30=3X+20
8x-3x=30+20
5x=50
x=10