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[tex]7-\frac{5}{2}(8r-6)+2r = 32[/tex]

[tex]7-\frac{5}{2}(2)(4r-3)+2r = 32[/tex]

[tex]7-5(4r-3)+2r = 32[/tex]

7-20r+15+2r = 32

22-18r = 32

-18r = 32-22

-18r = 10

[tex]r=\frac{10}{-18}[/tex]

[tex]r=-\frac{5}{9}[/tex]

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