Answer:
x = -5
Step-by-step explanation:
1/2(x-5)=2x+5
Multiply each side by 2
2(1/2(x-5))=2(2x+5)
x-5 = 4x+10
Subtract x from each side
x-5-x = 4x+10-x
-5 = 3x+10
Subtract 10 from each side
-5-10 = 3x+10-10
-15 =3x
Divide by 3
-15/3 = 3x/3
-5 =x
Just plug in the square root of 100 in your calculator (10) and then either leave it as 10/49 or simplify it to a decimal...depending on what your teacher is expecting from you.
Answer:
From top to bottom:
3
7
6
12
Step-by-step explanation:
You just simply add the number in the top row and the number in the column together.
2 + 1 = 3
4 + 3 = 7
2 + 4 = 6
6 + 6 = 12