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Mathematics
Ireland Kane
24 August, 08:47
Is 5x-14=8x+4 a no solutions or what?
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Rayan Cabrera
24 August, 11:11
0
x = - 6
Step-by-step explanation:
Solve for x:
5 x - 14 = 8 x + 4
Subtract 8 x from both sides:
(5 x - 8 x) - 14 = (8 x - 8 x) + 4
5 x - 8 x = - 3 x:
-3 x - 14 = (8 x - 8 x) + 4
8 x - 8 x = 0:
-3 x - 14 = 4
Add 14 to both sides:
(14 - 14) - 3 x = 14 + 4
14 - 14 = 0:
-3 x = 4 + 14
4 + 14 = 18:
-3 x = 18
Divide both sides of - 3 x = 18 by - 3:
(-3 x) / (-3) = 18 / (-3)
(-3) / (-3) = 1:
x = 18 / (-3)
The gcd of 18 and - 3 is 3, so 18 / (-3) = (3*6) / (3 (-1)) = 3/3*6 / (-1) = 6 / (-1):
x = 6 / (-1)
Multiply numerator and denominator of 6 / (-1) by - 1:
Answer: x = - 6
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