解方程. 4.5×6+4x=41 7x-3.4x=0.72 2x+1.5x=42 (x-4.5)×6=31.8 x÷1.2=8 (x+1.7)÷3=1.4.
问题描述:
解方程. 4.5×6+4x=41 |
7x-3.4x=0.72 |
2x+1.5x=42 | (x-4.5)×6=31.8 |
x÷1.2=8 | (x+1.7)÷3=1.4. |
答
(1)4.5×6+4x=41, 27+4x=41, 27+4x-27=41-27, &nb...