问几道解方程 ①120+3x=270 ②14x+25x=117 ③3.2x-0.6x=5.2 ④6问几道解方程①120+3x=270②14x+25x=117③3.2x-0.6x=5.2④64+0.2x=210
问题描述:
问几道解方程 ①120+3x=270 ②14x+25x=117 ③3.2x-0.6x=5.2 ④6
问几道解方程
①120+3x=270
②14x+25x=117
③3.2x-0.6x=5.2
④64+0.2x=210
答