解方程:(7/10x-30):(3/10x+30)=3:2

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解方程:(7/10x-30):(3/10x+30)=3:2解方程:(7/10x-30):(3/10x+30)=3:2解方程:(7/10x-30):(3/10x+30)=3:2(7/10x-30):(3

解方程:(7/10x-30):(3/10x+30)=3:2
解方程:(7/10x-30):(3/10x+30)=3:2

解方程:(7/10x-30):(3/10x+30)=3:2
(7/10x-30):(3/10x+30)=3:2
(7/10x-30)*2=(3/10x+30)*3
7/5x-60=9/10x+90
7/5x-9/10x=90+60
1/2x=150
x=300

(7/10x-30):(3/10x+30)=3:2
2*(7/10x-30)=3*(3/10x+30)
14/10x-60=9/10x+90
5/10x=150
x=300

14/10x-60=9/10x+90
1/2x=150
x=300