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Coleman Guzman
Mathematics
13 March, 11:04
Given: 3x + 1 = - 14; Prove: x = - 5
+5
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Aileen
13 March, 11:10
0
x = - 5
Step-by-step explanation:
Solve for x:
3 x + 1 = - 14
Subtract 1 from both sides:
3 x + (1 - 1) = - 14 - 1
1 - 1 = 0:
3 x = - 14 - 1
-14 - 1 = - 15:
3 x = - 15
Divide both sides of 3 x = - 15 by 3:
(3 x) / 3 = (-15) / 3
3/3 = 1:
x = (-15) / 3
The gcd of - 15 and 3 is 3, so (-15) / 3 = (3 (-5)) / (3*1) = 3/3*-5 = - 5:
Answer: x = - 5
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Jimmy Schwartz
13 March, 11:20
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Step-by-step explanation:
3x + 1 = - 14;
substr 1 : 3x+1-1 = - 14 - 1
3x = - 15
divid by 3
x = - 5
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