8x-5(10-x)=41解方程 8x-5(10-x)=41怎么解?
8x-5(10-x)=41怎么解?解:8x-5×(10-x)=41 8x-5×10 5x=41 13x-50=41 13x=50 41 13x=91 x=7解:8x-5×(10-x)=418x-5×1
8x-5(10-x)=41怎么解?
解:8x-5×(10-x)=41 8x-5×10 5x=41 13x-50=41 13x=50 41 13x=91 x=7
解:8x-5×(10-x)=418x-5×10 5x=4113x-50 4113x=91 x=7
解:從8x-5(10-x)=41得到8x-50 5x=41,即,(8 5)x=41 50,即13x=91的兩邊除以13得到x=7