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Bruce Burke
Mathematics
16 January, 07:59
Solve the equation
-13/4 - x = 1/2x - 1
+5
Answers (
2
)
Hunter Fuentes
16 January, 08:04
0
x = 2 or 1/4
Step-by-step explanation:
-13/4 - x = 1/2x - 1
Collect like terms
-13/4+1=1/2x+x
Using LCM
(-13+4) / 4 = (1+2x²) / 2x
9/4 = (1+2x²) / 2x
Cross multiply
9 (2x) = 4 (1+2x²)
18x=4+8x²
Turn into quadratic and solve
8x²-18x+4
Using formulae method
-b± (√b²-4ac) / 2a
Where a=8, b = - 18 and c=4
( - (-18) ± (√ (-18) ²-4 (8) (4)) / 2 (8)
(18± (√324-128)) / 16
(18±√196) / 16
(18±14) / 16
(18+14) / 16 or (18-14) / 16
32/16 or 4/16
2 or 1/4
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Maeve Duffy
16 January, 08:28
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Answer:2
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