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Q: What is the answer to n plus 18 equals 30?

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n + 6 = 18 n = 12

n + 5 = 18 n = 13

5 + n = 23 n = 18 18 - 5 = 13 ■

123

n + 18 = 27 subtract 18 to 18 and 27 18-27=9 n = 9

N=3.

It depends on the value of n.

if you put in what the problem equals then it can be answered

3n+6=18 n+2=6 n=4

It is a linear equation in one variable, n.

For n+9=18, the answer would be n=9 because n+9=18 also mean 18-9=n so 18-9=9

n = 5 so both sides are equal