diamondslayer7
diamondslayer7
18-08-2017
Mathematics
contestada
Solve for X. Geometry
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apologiabiology
apologiabiology
18-08-2017
so since they are similar
AC/BC=CD/CE
so
(66-x)/30=(x+4)/5
times both sides by 5
(66-x)/6=x+4
times both sides by 6
66-x=6(x+4)
distribute
66-x=6x+24
add x to both sides
66=7x+24
minus 24 from both sides
42=7x
divide both sides by 7
6=x
x=6 units
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