2/5x=460-3/4x(2/5+3/4)x=460(8/20+15/20)x=460(23/20)x=460(1/20)x=20x=400
2/5x=(460－x)ⅹ3/42/5ⅹ=115－3/4ⅹ(2/5+3/4)ⅹ=11523/20ⅹ=115x=100
2/5x=460-3/4x2/5x+3/4x=46023/20x=460x=400
