Answer:
excuse me, but how do we answer this? This question is unanswerable without it being a question!
Step-by-step explanation:
Answer:
false
false
true
false
true
Step-by-step explanation:
brainliest?
The order of operations is used to order numerical expressions
Answer:
15
Step-by-step explanation:
x - y = 10, then x = 10 + y
x + y = 20
substitute for x:
10 + y + y = 20
2y = 10
y = 5
x = 10 + 5 = 15