Bring like terms together
(REMEMBER CHANGE THE SIGN WHEN MOVING ACROSS THE EQUAL SIGN i.e. - becomes + and + becomes -)
4x - 2x = 7 - 3
2x = 4
divide both sides by 2
x = 2
I dont know that either i am actually trying to figure that out now
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Answer:
7.74 square cm
Step-by-step explanation:
To find the leftovers, calculate the area of the square and the area of the circle. Then subtract the two.
Square: A = s*s = 6*6 = 36
Circle: 
The area leftover is A = 36 - 28.26 = 7.74
Here is a key that showed up online