The number of Red supporters are 345
From the given information, we have that
Red supporters = 1/3 x
Let the total number of supporter be x
1/3 x + blues = x
1/3x + 1/3x + 345 = x
2/3x + 345 = x
Collect like terms
[tex]x - \frac{2x}{3} = 345[/tex]
[tex]\frac{1}{3} x = 345[/tex]
Cross multiply
[tex]x = 3[/tex] × [tex]345[/tex]
[tex]x = 1035[/tex]
We have red supporters = 1/3x
⇒ [tex]\frac{1}{3}[/tex] × [tex]1035[/tex]
⇒ [tex]345[/tex]
Thus, the number of Red supporters are 345
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