Answer:
484
Step-by-step explanation:
Answer:
0
Step-by-step explanation:
3x+21=3(x+7)
3x+21=3x+21
3x-3x=21-21
0x=0
x=0
Answer:
x=-5
Step-by-step explanation:
f(x)=8x+5
-35=8x+5 substitute -35 for f(x).
-40=8x subtract 5 from both sides.
-5=x divide both sides by 8 and then simplify