134.7x35-30x35-4.7x35用简便
1个回答
134.7x35-30x35-4.7x35
=(134.7-30-4.7)x35
=100x35
=3500
相关问题
134.7*35-30*35-4.7*35怎么简便计算
x:(134-x)=35:32
42X35十55X35十3X35 用简便算法.
(4.2+x)x35=(x+5.4)x 30 x35和x30是乘35和乘30
x+y+z=142x/28+y/30+z/35=4.5x/35+y/30+z/28=4+42/60=4.7
4(3X-7)=19-35X
x-35%=7.
5x+7=42 5x=42-7 5x=35 x=35/5 x=7 把X=7带入原方程怎么带:
35x14-70+30 简便计算
5/35 X 4/9 + 4/7 X 6/9 1.2/9 - 2/9 X 3/10 2.5/35 X 4/9 + 4/7