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Leonardo Nelson
Mathematics
21 April, 11:36
What's the answer to 3 (x-4) = 12x
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Landyn Liu
21 April, 11:37
0
x = - 4/3
Step-by-step explanation:
Distribute:
3x - 12 = 12x.
-12 = 9x
x = - 12/9 or - 4/3
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Soren Leonard
21 April, 11:42
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3 (x-4) = 12x
multiply the bracket by 3
(3) (x) = 3x
(3) 9-4) = -12
3x-12=12x
move 3x to the other side
sign changes from + 3x to - 3x
3x-3x-12=12x-3x
-12=9x
divide both sides by 9 to get x by itself
-12/9=9x/9
-12/9=x
reduce - 12/9 by dividing by 3
-12/3=-4
9/3=3
answer:
-4/3 or - 1 1/3
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