问题
解答题
解方程:
(1)12x÷6=9.5;
(2)3.5x-2.7x=3.3×12.
答案
①12x÷6=9.5,
12x÷6×6=9.5×6,
12x=57,
12x÷12=57÷12,
x=4.75;
②3.5x-2.7x=3.3×12,
0.8x=39.6,
0.8x÷0.8=39.6÷0.8,
x=49.5.
解方程:
(1)12x÷6=9.5;
(2)3.5x-2.7x=3.3×12.
①12x÷6=9.5,
12x÷6×6=9.5×6,
12x=57,
12x÷12=57÷12,
x=4.75;
②3.5x-2.7x=3.3×12,
0.8x=39.6,
0.8x÷0.8=39.6÷0.8,
x=49.5.