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FG=8x+4. If GH=4x+8 and FH=15x-9, then what does FH=?
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Jan 25, 2018
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FG=8x+4. If GH=4x+8 and FH=15x-9, then what does FH=?
Mathematics
high-school
Ikbal
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So 8x+4+4x+8=15x-9
Combine like terms.
12x+12=15x-9
Add 9 to both sides.
12x+21=15x
Subtract 12 from both sides.
21=3x
Divide both sides by 3.
x=7
Now plug in 7 for x in 8x+4.
8(7)+4
56+4
=60
Ahanin
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Jan 30, 2018
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