Respuesta :

x=-8

-8x + 6x is -2x
12 + 4 = 16
-2x = 16
÷-2 ÷-2
x = -8

you switch signs when crossing over the equal sign
angelinarocchio

Answer:

the answer is -8. To do this first minus one of the x variables to the other I will use -8 but either one works. from there you will get 2x+4=-12. From there minus 4 to 13 giving you -16 then divide it by 2 giving us our final answer -8.

Step-by-step explanation:


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