Answer:
w = 37
Step-by-step explanation:
1. To solve this problem, you need to subtract both sides by 98. This will isolate the variable.
135 = w + 98 → 138 - 98 = w + 98 - 98
37 = w
2. Switch the sides
37 = w → w = 37
3. Your final answer should be w = 37