(4)x + 9分之7x = 3分之4 (5)4分之3x + 5%x =17.6
...=5 (2)x -- 12%x =2.816 (3)5分之4 × 4分之1 -- 2分之1x = 20分...
(1)17-- 120%x =5 1.2x=17-5 1.2x=12 x=10 (2)x -- 12%x =2.816 0.88x=2.816 x=2.816÷0.88 x=3.2 (3)5分之4 × 4分之1 -- 2分之1x = 20分之1 1\/5-1\/2x=1\/20 1\/2x=1\/5-1\/20 1\/2x=3\/20 x=3\/10 (4)x + 9分之7x = 3分之4 16\/...
4,20,12最小公倍数 x-(3分之1-4分之1)=8分之5 4分之1+2x=4分之17后两...
x-(3分之1-4分之1)=5分之4 ; x-1\/12=4\/5; x=5\/60+48\/60; x=53\/60; 1减去5分之3与5分之2的和,差是多少 ? 1-(3\/5+2\/5) =1-1 =0; 6分之5-(3分之1-6分之 1) =5\/6-1\/3+1\/6 =1-1\/3 =2\/3; 过程详细 2分之3-17分之55-17分之1...
17减百分之120x=5 x-百分之12x=2.816 5分之4×4分之1-2分之1x=20分...
5分之4×4分之1-2分之1x=20分之1 4-10x=1 x=3\/10 x+9分之7x=3分之4 9x+7x=12 x=3\/4 4分之3x+百分之5x=17.6 0.8x=17.6 x=22
解方程.(1)12x+13x=34(2)17-120%x=5(3)x-12%x=2.816(4)45×14-12x...
(1)12x+13x=34 56x=34 56x×65=34×65 x=910(2)17-120%x=5 17-1.2x=5 17-1.2x+1.2x=5+1.2x 5+1.2x=17 5+1.2x-5=17-5 1.2x=12 1.2x÷1.2=12÷1.2 x=10 (3)x-12%x=2.816 0.88x=2.816 0.88x÷0.88=2.816÷0...
解方程,x减去12%x等于2.816,要过程。
x-12%x=2.816 0.88x=2.816 x=0.032 回答完毕~无疑问请点击【采纳】,同时预祝学习进步~\\(^o^)\/~我不是学霸,叫我赌神~\\(^o^)\/~
解方程.x-12%x=2.816.
x-12%x=2.816,(1-12%)x=2.816, 88%x=2.816, 88%x÷88%=2.813.26÷88%, x=3.2
解方程. x-12%x=2.816 4
(1)x-12%x=2.816, (1-12%)x=2.816, 0.88x=2.816, 0.88x÷0.88=2.816÷0.88, x=3.2;(2)45×14-12x=120, 15-12x=120, 15-12x+12x=120+12x, 120+12x=15, 120+12x-120=15-120, 12x=320, 12x×2=320×2, x...
要写计算过程 解方程 谢谢你
4\/5×1\/4-1\/2x=1\/20 1\/5-1\/2x=1\/20 方程两边同时乘以20得:4-10x=1 -10x=-3 x=3\/10 17-120%x=5 -120%x=-12 -1.2x=-12 x=10 x+7\/9x=4\/3 16\/9x=4\/3 x=4\/3 x-12%x=2.816 100%x-12%x=2.816 88%x=2.816 0.88x=2.816 x=3.2 3\/4x+5%x=17.6 3\/4x+...
解方程.12X+13X=34X-12%X=2.816.
(1)12x+13x=34, 56x=34, 56x×65=34×65, x=910;(2)x-12%x=2.816, 0.88x=2.816,0.88x÷0.88=2.816÷0.88, x=3.2
计算题和解方程
=3\/4+5\/12 =9\/12+5\/12 =14\/12 =7\/6 (3\/8-25%)×8÷5\/6×5\/2 =(0.375-0.25)×8×6\/5×5\/2 =0.35×8×3 =2.8x3 =8.4 40%x+4=60 0.4x=56 x=140 x÷(1-46%)=25\/27 x÷54%=25\/27 x=25\/27x54 x=0.5 x-12%x=2.816 88%x=2.816 x=2.816÷88 x...