Answer:
[tex]20z−8=4(5z-2)[/tex]
Step-by-step explanation:
[tex]20z−8[/tex]
20z can be written as 5 times 2 times 2 times z
8 can be written as 2 times 2 times 2
[tex]20z-8= 5 \cdot 2 \cdot 2 \cdot z- 2 \cdot 2 \cdot 2[/tex]
Greatest common factor for 20z and 8 is 2 times 2 = 4
Now take out 4 in common
[tex]20z−8=4(5z-2)[/tex]
