Shoes Man Specs Boxing Glove 

The answer of the above equation is 590.

Explaination:

Let the shoes be, S

the boy be, B

the goggles be, G

& Let the boxing glove be, BG

So, rearranging the equations in the terms of S, B, G & BG.

Equation (1); 2S + 2S + 2S = 60

Equation (2); 2S + B + B = 30

Equation (3); BG + B + BG = 09

Equation (4); 2S + BG + G = 42

Equation (5); S + (B + G + 2BG) * G =?

Solving equation (1);

2S + 2S + 2S = 60

6S = 60

S = 10

Substitute the value of S, in equation (2);

2S + B + B = 30

20 + 2B = 30

2B = 10

B = 5

Now, substitute the value of B, in equation (3);

BG + B + BG = 09

BG + 5 + BG = 09

2BG = 9 – 5

2BG = 4

BG = 2

Now, substitute the values in equation (4);

2S + BG + G = 42

20 + 2+ G = 42

22 + G = 42

G = 20

Now, moving to the final equation, substitute all the required values in final equation (5),

S + (B + G + 2BG) * G =?

= 10 + (5 + 20 + 4) * 20

= 10 + (29) * 20

S + (B + G + 2BG) * G= 10 + 580

S + (B + G + 2BG) * G = 590