Formulas, answers and solutions are in the file.
x= (2 +- 4)/2
x1= 3; x2= -1

Now we must solve this equation if x = 5. To do so we must substitute:

Using PEMDAS we will solve for the parenthesis first.

Multiply:

Add:

Final answer: 62
Answer:
x = 12.1
Step-by-step explanation:
20 − (z + 7) = 0.9
Distribute the minus sign
20 -x -7 = .9
Combine like terms
13 -x = .9
Subtract 13 from each side
-x = -12.1
x = 12.1
Answer:
50% of the number is 40
Step-by-step explanation:
8 * 5 = 40
The answer is -4+72/2y+9 when you solve using polynomial division :)