3【x-1.8】=15.3
问题描述:
3【x-1.8】=15.3
答
3【x-1.8】=15.3
x-1.8=5.1
x= 6.9
3【x-1.8】=15.3
3【x-1.8】=15.3
x-1.8=5.1
x= 6.9