What does x = in the equation 8x-9=x+9

asked Aug 4, 2021 220k views

2 votes

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5 votes

Answer:

x = 2 4/7

Explanation:

8x - 9 = x + 9

Add 9 to both sides

8x - 9 + 9 = x + 9 + 9

8x = x + 18

Collect like terms

8x - x = 18

7x = 18

Divide both sides by 7

7x/7 = 18/7

x = 2 4/7

Mark Tye answered Aug 9, 2021

5.7k points

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