1.75%X=15.52.180*40%X=8/53.4X+5%X=3/4
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1.75%X=15.52.180*40%X=8/53.4X+5%X=3/4
180=( )x( )x( )x( ) ×( )
解方程40+x+x=180
x*(40-x)/2=180
2x+40%x=180
x-40%x=
40%x+180=4/5x 40%x+180=4/5x
① (x-5)/8+40=(x-5)/6② x+(3x+1)+(x/2 -1)=180
180=( )x( )=( )X( )=( )X( )
x-40%x-40%x=15
x+40=2x x=?
X×X+(40-X)=58
X乘以X等于40 ---------------------X=?
10x+x*x=40
(x+40%x)×85%-x=95
(x+40%x)×85%-x=95
4x+x=40x
40%x+70%x-x=1.8