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Mathematics
Darnell Tanner
26 June, 20:35
3 (x-2) |=12 what is x
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Virginia Wilkinson
26 June, 23:33
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Multiply the bracket by 3
3 (x-2) = 12
3 (x) - 3 (2) = 12
3x-6 = 12
Move - 6 to the other side. Sign changes from - 6 to + 6.
3x-6+6 = 12+6
3x = 18
Divide by 3 for 3x and 18
3x/3 = 18/3
x = 6
Check answer by using substitution method
3 (x-2) = 12
3 (6-2) = 12 (Multiply the bracket by 3)
18-6 = 12
12 = 12
Answer : x = 6
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