Quick I need to find out the solution to the math problem 13 + w÷7 = –18

I tried doing this by myself but I can't seem to get it right. Please help ASAP!

13 + (w/7) = - 18
Multiply by 7 to lose the fraction
91 + w = - 126
w = - 126 - 91
w = - 217

Check
13 + (-217 / 7) = - 18
13 - 31 = - 18

real easy:

13 + w/7 = -18
w/7 = -31 subtract 13 from each side
w=-31*7 multiply each side by 7
w=217

so you want to get the w alone. first you subtract 13, w/7=-31. now you get rid of the 7, so w=217.

7 x - 18 and then minus that answer by 13 and that will be 'w' :) I'd work it out for u but I don't have a calculator lmao. Its simple once you practise

First you must subtract -18 - 13 = -31
Then, you must multiply -31 X 7 = -217
So w= -217

-18-13= w/7 or -31x7=w ?