Answer:
Step-by-step explanation:
so i believe it is 11x+-20 because
2 times 6x equals 12x
then 2 times -10 equals -20 (you would change the subtraction to plus and the 10 to -10)
then change the - to a + and the x to a -x
so it would 12x+-20+-x
which would equal 11x+-20
(you cant add numbers with variables with numbers without variables)
Hope its right and it helped xx
