解方程:( x -3 ) * ( 1+ 1 \ 2) = ( 1 +1 \ 5 ) x
问题描述:
解方程:( x -3 ) * ( 1+ 1 \ 2) = ( 1 +1 \ 5 ) x
答
( x -3 ) * ( 1+ 1 \ 2) = ( 1 +1 \ 5 ) x
3\2*(x-3)=(6x)\5
(3x)\2-9\2=(6x)\5
(15x)\10-(12x)\10=9\2
(3x)\10=9\2
x=15
答
X=15
答
( x -3 ) * ( 1+ 1 \ 2) = ( 1 +1 \ 5 ) x
3\2*-9\2= x+1 \5 x
3\2*-9\2=6\5x
15\10-9 \2=12\10x
3 \10x=9\2
x=15