解方程:89x=7122.4:32=3.2:x283x=499×9732×3+2.75x=1935.6x-35x=4.85x-3×710=75.-数学
题文
解方程:
|
答案
(1)
63x=8×12, 63x÷63=8×12÷63, x=
(2)2.4:
2.4x=3.2×
2.4x÷2.4=3.2×
x=2; (3)
x=
(4)
|
题文
解方程:
|
答案
(1)
63x=8×12, 63x÷63=8×12÷63, x=
(2)2.4:
2.4x=3.2×
2.4x÷2.4=3.2×
x=2; (3)
x=
(4)
|