Answer:
z = 7
Step-by-step explanation:
4z - 8 = 20
Add 8 to each side
4z - 8+8 = 20+8
4z = 28
Divide each side by 4
4z/4 = 28/4
z = 7
Answer:

Step-by-step explanation:
Given

--- scale factor
Required
Determine A'
This is calculated as:




Answer:
The numbers are 21 and 33
Step-by-step explanation:
54/2=27
27-6=21
27+6=33
Answer:
Sorry I can't answer this question but, I can say this...
The three methods most commonly used to solve systems of equation are substitution, elimination and augmented matrices. Substitution and elimination are simple methods that can effectively solve most systems of two equations in a few straightforward steps.
7x-10=60
The answer would be x=10
I hope this helped!