Answer:
The answer is B.
Step-by-step explanation:
When Elimination method is applied, you have to eliminate one of the variables from both equations. Firstly, both equations contain 4y so you can subtract it :
Next, you have to substitute x = 5 to any equations. I will choose to put in (2) :
Therefore, put your answer in coordinate form :
Answer:
Only C
Step-by-step explanation:
A = 3D
J = 7 + D
A: Alice doesn't necceserily have more stamps than Jane ( Jane could have 8 + 4 = 12 stamps, and Alice would have 3 + 4 = 7) (This is false)
B: Jane will ALWAYS have 7 more stamps than Doris (if all values are increased by same amount). (This is false)
C: The Sum of Alice and Doris is D + 3D = 4D, so C is true
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