Answer:
top left
Step-by-step explanation:
If you look at both equations they both have 2x in them. This makes it easier to eliminate x. To eliminate x we must subtract the second equation from the first (because 2x - 2x = 0).
Answer:

Step-by-step explanation:
Given

Required
Determine the second power
The second power of an expression is the square of the expression.
So, the second power of
is

Solving further:

Hence:
Option (c) is correct
Answer:
x=2.4
Step-by-step explanation:
brainliest pls
Answer:
$315
Step-by-step explanation:
600-600=0
0+315=315
Answer:a squared-b squared
Step-by-step explanation: