8×25=200
and
200×23=4600
so 8×25×23=4600
Answer:

Step-by-step explanation:
<u>Distribute the 9:</u>
<u />
<u>Subtract x on both sides:</u>
<u />
<u>Subtract 9 on both sides:</u>
<u />
<u>Divide both sides by 8:</u>

1st add 7 to both sides : 3z = 21, 2nd divide both sides with 3: z = 7