3x+2×0.5x-6=30
问题描述:
3x+2×0.5x-6=30
答
3x+2×0.5x-6=30
3x+1x=36
4x=36
x=9
3x+2×0.5x-6=30
3x+2×0.5x-6=30
3x+1x=36
4x=36
x=9