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Lea Cunningham
Mathematics
14 June, 10:17
What does x = in the equation 8x-9=x+9
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Paulina Burke
14 June, 10:39
0
x = 2 4/7
Step-by-step 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
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