K is the variable.
5k + 18 = -7
-18 -18 [add negative plus a negative]
\5k = -25/ [negative divided by a positive = a negative]
5 5
___________
k = -5
**to check your answer place the -5 where the variable k is. Let's do it together.
5(-5)+ 18 =-7 [remember your order of operations.
1.) parenthesis
2.) exponents
3.) mulitiply
4.) divide
5.) add
6.) subtract
**to remember: the first letter in each word is
PEMDAS <that's how I remember.
-25 + 18 = -7 [-25 + 18 = -7]
-7 = -7
Now you know you're correct!
Hope this helped!
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