2x-1.65+2.358=7怎么解
问题描述：
2x-1.65+2.358=7怎么解
答
2X-1.65=7-2.358 两边同时减去2.358
2X-1.65=4.642
2X =4.642+1.65 两边同时加上1.65
2X =6.292
X =6.292/2 两边同时除以2
X =3.146