30/(30+60-X)=88/(88+100),X=?

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30/(30+60-X)=88/(88+100),X=?30/(30+60-X)=88/(88+100),X=?30/(30+60-X)=88/(88+100),X=?30/(30+60-X)=88/

30/(30+60-X)=88/(88+100),X=?
30/(30+60-X)=88/(88+100),X=?

30/(30+60-X)=88/(88+100),X=?
30/(30+60-X)=88/(88+100)
30/(90-X)=88/(88+100)
30/(-X)=88/(-2*88+100)
30/X=88/76
X=30*76/88
X=15*19/11
X=285/11