Answer:
1 = No, 2 is correct, 3 = No, 4 is correct.
Step-by-step explanation:
x + 3y = 5
x + y = 10
x - y = 5
Answer:
Nothing, he just waved
Step-by-step explanation:
Dad jokes hehehe
Answer:
-192
Step-by-step explanation:
replace the x with -8 and multiply