Answer:
whats your question im confused
Step-by-step explanation:
Divide by 5 each side
X+2=4
Subtract 2 from each side
X=2
5(2+2)=20
Does work
In algebra when isolating (leaving alone on one side) x, you do the opposite operation, thus multiplying when you are trying to get rid of a division and vice versa
The z-score is calculated by the formula (x - mu)/sigma, where x is the value, mu is the mean, and sigma is the standard deviation.
Step 2: commutative property of multiplication
Step 3: multiplicative inverse
Step 4: multiplicative identity
