Answer:
[tex]y = 9[/tex]
Step-by-step explanation:
[tex]6y + 5 + 9y + 30 = 170[/tex]
[tex]15y + 35 = 170[/tex]
[tex]15y + 35 - 35 = 170 - 35[/tex]
[tex]15y = 135[/tex]
[tex] \frac{15y}{15} = \frac{135}{15} [/tex]
[tex]y = 9[/tex]
[tex]15(9) + 35 = 170[/tex]
[tex]135 + 35 = 170[/tex]
[tex]170 = 170[/tex]
