Answer:
x=6
Step-by-step explanation:
3x+11=5x+100
move terms
3x-5x=100-112
subtract 3x to 5x and subtract 100 to 112
-2x=-12
divide both sides by -2
x=6
Theres no linked picture.
Answer: 
-3 times the square root of 5
=============================================
Explanation:
Let 
Replace all the root 5 terms with x and we go from

to

From here, combine like terms to get

and the last thing to do is replace the x with sqrt(5)

Meaning that,


The percent is 84%. All you have to do is divide 577.92 by 688. Not sure how to make an equation though sorry.
Answer:
-9x+12
Step-by-step explanation:
(-8x + 5) - (x – 7)
Distribute the minus sign
(-8x + 5) - x + 7
Combine like terms
(-8x -x+ 5+7)
-9x +12