Answer:
x=8
Explanation:
80+10x=0+20x
you have to subtract 20 from ten which is 10 and then you devide 80 by 10x which is x=8
80 + 10x = 20x
-10x -10x
subtract 10 x from both sides (always do to both sides)
80=10x
divide both sides by 10
80/10 = 8
10x/10 = x
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