Answer:
10,38,43
Step-by-step explanation:
n+4n-2+5n-7=91
10n=91+2+7
10n=100
n=10
4(10)-2=38
5(10)-7=43
if anything is unclear, ask freely.
Answer:
8x + 4
Step-by-step explanation:
Answer:
4 and then 15
Step-by-step explanation:
Answer:
7 / 15
Step-by-step explanation:
15x - 7 = 0
15x = 7
x = 7/15
