Explanation:
3x-3=2x+9
3x-2x=9+3
x=12
only one solution
Answer:
one solution
x = 12
3 (x-1) = 2x + 9
3x - 3 = 2x + 9
subtract 2x from each side of the equation:
x - 3 = 9
add 3 to each side:
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