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Abdiel Mcdonald
Mathematics
17 May, 16:28
Solve equation 3 (n - 5) = 7 - 2 (n + 1)
+5
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Dax Ramos
17 May, 16:49
0
n = 4 4/5
or, in decimal form:
n = 4.8
Step-by-step explanation:
3n - 15 = 7 - 2n + 2
3n + 2n = 7 + 2 + 15
5n = 24
n = 4 4/5
n = 4.8
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Whitney Acevedo
17 May, 16:54
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n = 4
Step-by-step explanation:
3 multiplied by n is 3n.
3 multiplied by - 5 is - 15.
so 3n-15 = 7-2 (n+1)
7-2 (n+1) is - 2 multiplied by n is - 2n and - 2 multiplied by 1 is - 2.
3n-15=7-2n-2
then move the variables to one side and numbers to the one side.
3n+2n=15+7-2
*If you are moving across the equation the symbols change. Like negative to positive. Division to multiplication.
so 5n=22-2
5n=20
5 multiplied by 4 is 20 so n is going to be 4.
N=4
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