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Zaiden
Mathematics
21 July, 10:46
Solve for the equation
13/2 - 1/2x = - x + 7/3
+5
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2
)
Zariah Harding
21 July, 10:53
0
0.1167 or - 4.2833
Step-by-step explanation:
13/2 - 1/2x = - x + 7/3
Collect like terms
-1/2x+x=7/3-13/2
Using LCM
(-1+2x²) / 2x = (14-39) / 6
(-1+2x²) / 2x=-25/6
Cross multiply
6 (-1+2x²) = -25 (2x)
-6+12x²=-50x
12x²+50x-6
Solve using formulae method
-b± (√b²-4ac) / 2a
Where a=12, b=50 and C=-6
(-50± (√50²-4 (12) (-6))) / 2 (12)
(-50± (√2500+288)) / 24
(-50±√2788) / 24
(-50±52.8) / 24
(-50+52.8) / 24 or (-50-52.8) / 24
2.8/24 or - 102.8/24
0.1167 or - 4.2833
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Yair
21 July, 11:09
0
x = - 25/3
Step-by-step explanation:
13/2 - 1/2x = - x + 7/3
Multiply each side by 6 to get rid of the fractions
6 (13/2 - 1/2x) = 6 * (-x + 7/3)
39 - 3x = - 6x + 14
Add 6 to each side
39 - 3x+6x = - 6x+6x + 14
39 + 3x = 14
Subtract 39 from each side
39-39 + 3x = 14-39
3x = - 25
Divide each side by 3
3x/3 = - 25/3
x = - 25/3
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