Answer:
Step-by-step explanation:
if 3x+2=11
3x=11-2
3x=9
x=3
Answer:65
Step-by-step explanation:
Answer:
x=(k-11)/4..................
Let x be the number multiplied by 7.
We get 7x.
At least 30 means GREATER THAN OR EQUAL TO 30 or ⩾ 30.
Put it all together now.
7x ⩾ 30
Divide both sides by 7.
x ⩾ 30/7
Done!