Change first equation
x - 2y = 1
add 2y to both side
x = 2y + 1
Plug into second equation
3(2y+1) - 6y = 3
Distributive property
6y + 3 - 6y = 3
y = 0, plug into first equation
x - 2(0) = 1, x = 1
Solution: x = 1, y = 0
You could easily change the 2 1/2 to a 2.5 and do 2.5-6=-3.5
Answer:2
Step-by-step explanation: two ones equal one two
Answer:
There are two types of crust, continental and oceanic, which differ in their composition and thickness.
Step-by-step explanation:
I don't know too much about plate tectonics but if Im wrong you can report this and get your points back.
Answer:
until you only look at the thousands and hundreds place and if the hundred is 5 or more you round the thousands up one
so 3,842,532 rounded the the nearest 1000 is 3,843,000
