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NEED HELP -9 (-16 - f) = 4(1 - 3f) I keep getting -140/3 as an answer, but apparently that's wrong, I have no idea what I'm not doing right

NEED HELP -9 (-16 - f) = 4(1 - 3f) I keep getting -140/3 as an answer, but apparently that's wrong, I have no idea what I'm not doing right
asked 234k views
3 votes
NEED HELP

-9 (-16 - f) = 4(1 - 3f)
I keep getting -140/3 as an answer, but apparently that's wrong, I have no idea what I'm not doing right

asked
User Joshiste
by
8.5k points

1 Answer

3 votes
First use distributive property on both sides of the equation.
-9(-16 - f) = 4(1 - 3f)
144 + 9f = 4 - 12f
Then isolate f on one side of the equation:
3f = -140
f = 46.67 --> (which is equal to -140/3)
I'm sorry I couldn't help more. I don't know why it's wrong. Maybe try putting in it decial form instead.
answered
User Bhumi Shah
by
8.2k points
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