解方程:3(X+0.5)+2X=15【怎么解?
问题描述:
解方程:3(X+0.5)+2X=15【怎么解?
答
解,3x +3×0.5+2X =15 5X +1.5=15 5X =15-1.5 5X =13.5 X=2.7
解方程:3(X+0.5)+2X=15【怎么解?
解,3x +3×0.5+2X =15 5X +1.5=15 5X =15-1.5 5X =13.5 X=2.7