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Amiyah Gallagher
Mathematics
4 September, 20:53
What is the answer to - 2 (2f-4) = - 4 (-f+2)
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Tristian Mueller
4 September, 21:03
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-2 (2f-4) = - 4 (-f+2)
Distribute the - 2, multiplying it to each term inside the parentheses.
(-2 * 2f = - 4f, and - 2 * - 4 = 8 because the double negatives cancel)
-4f+8 = - 4 (-f+2)
Now distribute the - 4 ...
(-4 * - f = 4f, and - 4 * 2 = - 8)
-4f+8 = 4f-8
Add 4f to each side so that our variable is on just one side of the equation.
8 = 8f-8
To get rid of that - 8 and isolate our variable, add 8 to each side.
16 = 8f
Divide each side by 8 to get the value of f.
2 = f
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Chase Campos
4 September, 21:15
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-2 (2f-4) = - 4 (-f+2)
(-2) (2f) + (-2) (-4) = (-4) (-f) + (-4) (2) (Distribute)
-4f+8=4f+-8
-4f+8=4f-8
Subtract 4f from both sides.
-4f+8-4f=4f-8-4f
-8f+8=-8
Subtract 8 from both sides.
-8f+8-8=-8-8
-8f=-16
Divide both sides by - 8.
-8f/-8=-16/-8
f=2
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