Answer:
1
Explanation:
3x + 9= 9 -3x
Collect like terms
3x + 3x = 9-9
6x = 0
X = 0
6
1 Solution
Step 1:
3x + 9 = 9 - 3x
Step 2:
6x + 9 = 9
Step 3:
x = 0
Hope This Helps :)
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