It is 70 because common sense people
Answer:
a. infinite solutions, answer is x = 30, identity equation
b. no solution, a contradiction equation
c. no solution, a contradiction equation
Step-by-step explanation:
Answer:
Try out each different answers and see which one would work.
Step-by-step explanation:
Go to A, and then B and then C and then D to find the correct one. Plug in the answers to find out which one is correct.