Looks complicated, sorry wish I could help
Answer:
5
Step-by-step explanation:
(-8)-(-13)= 5
Answer:
x = 89
Step-by-step explanation:
106 - 17 = 89
Answer:
No
Step-by-step explanation:
Plug in (-2, -6) to see if it's the solution or not
3(-2) + 18(-6) ? -14
-6 + ( -108) ? -14
-114 ≠ -14
Answer is NO
There’s two ways to substitute, but i think you mean if you know x but don’t know y. if that is true, then yes use substitution
