(34-x)/(58-x)=40%

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(34-x)/(58-x)=40%(34-x)/(58-x)=40%(34-x)/(58-x)=40%(34-x)/(58-x)=40%(34-x)/(58-x)=2/52(58-x)=5(34-x)

(34-x)/(58-x)=40%
(34-x)/(58-x)=40%

(34-x)/(58-x)=40%
(34-x)/(58-x)=40%
(34-x)/(58-x)=2/5
2(58-x)=5(34-x)
116-2x=170-5x
3x=54
x=18

(34-x)/(58-x)=40%
(34-x)/(58-x)=2/5
5(34-x)=2(58-x)
170-5x=116-2x
5x-2x=170-116
3x=54
x=18

(34-x)/(58-x)=40%
34-x=0.4(58-x)
34-x=23.2-0.4x
x-0.4x=34-23.2
0.6x =10.8
x=10.8/0.6
x=18