有谁帮我解方程7.2×=64.8 0.5×+11.4=19.4 ×÷7.6=41.8
问题描述:
有谁帮我解方程7.2×=64.8 0.5×+11.4=19.4 ×÷7.6=41.8
答
7.2X=64.8
X=64.8/7.2=9
0.5X+11.4=19.4
0.5X=19.4-11.4=8
X=8/0.5=16
X÷7.6=41.8
X/7.6=41.8
X=41.8*7.6=317.68