To solve the equation -n = 7, you need to isolate the variable n. To do this, you can multiply both sides of the equation by -1 to get n by itself. By multiplying both sides by -1, you get n = -7. Therefore, the solution to the equation -n = 7 is n = -7.
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Well, isn't that a happy little equation we have there! To find the solution, we simply need to think of the negative sign in front of the 'n' as a debt we owe. So, to balance the equation and make it happy again, we can multiply both sides by -1 to get the solution: n = -7. And just like that, we've turned a problem into a lovely solution!
- n = 7
multiply through by, - 1
- 1(- n = 7)
a negative times a negative is positive ( and, of course, a negative time a positive is negative )
n = - 7
======check
- (- 7) = 7
( negative times negative = positive )
7 = 7
----------checks
Oh, dude, it's like super simple. So, if you have -n equals 7, you just have to multiply both sides by -1 to get n by itself. So, n equals -7. Easy peasy lemon squeezy.
3 (n + 7) = 16
63
It is a linear equation in one unknown variable, n. Its solution is n = 1
To solve the equation n - 5 = 12, you would first add 5 to both sides of the equation to isolate the variable n. This gives you n = 17 as the solution. Therefore, the value of n that satisfies the equation is 17.
n + 16 = 9 n + 16 - 16 = 9 -16 (add 16 to both sides, the equation remains same) n + 0 = -7 n = -7