Respuesta :

mrinal2390

x= 15


4x+8x: 180
12x: 180
x: 180/12
x: 15

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0817418

Answer:

x=15

Step-by-step explanation:

we know that 8x+4x= 180 so then we add 8x to 4x and we get 12x then we divide 180 by twelve and 12x by twelve to get that x=15