问题
解答题
求未知数x.
2x-4×3=52. |
答案
(1)
=0.25 1.25
,1.6 x
0.25x=1.25×1.6,
0.25x÷0.25=2÷0.25,
x=8;
(2)2x-4×3=52,
2x-12=52,
2x-12+12=52+12,
2x÷2=64÷2,
x=32.
求未知数x.
2x-4×3=52. |
(1)
=0.25 1.25
,1.6 x
0.25x=1.25×1.6,
0.25x÷0.25=2÷0.25,
x=8;
(2)2x-4×3=52,
2x-12=52,
2x-12+12=52+12,
2x÷2=64÷2,
x=32.