Answer:

From 1st and 2nd equation you will understand that Firefox and Opera are equal.

And from 3rd equation, you will find the value of Firefox = 4 = Opera

Put the value of Firefox in 1st equation and you will get the value of Chrome

4 Chrome = 3 Firefox    ⇒   4 Chrome = 12  ⇒  Chrome = 12/4 = 3

So the values for each browser are as ollows: Chrome = 3, Firefox = 4, Opera = 4

Last Equation:

Firefox + 2 Opera × Chrome  =  ??

 4 + 8 × 3  ⇒  4 + 24  ⇒  28 

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