7x-3x=7+5
4x=12
X=3
This is the answer
Answer:
the first one is correct
Step-by-step explanation:
mark brainliest please
Answer:
n=189
Step-by-step explanation:
I hope this helps! :)
Brainliest? ✨
Answer:
6/5=x/15
Step-by-step explanation:
6/5=x/15,where x is hight of the lamp post
x=18
Each time they assume the sum<span> is </span>rational<span>; however, upon rearranging the terms of their equation, they get a contradiction (that an </span>irrational number<span> is equal to a </span>rational number<span>). Since the assumption that the </span>sum of a rational<span> and </span>irrational number<span> is </span>rational<span>leads to a contradiction, the </span>sum<span> must be </span>irrational<span>.</span>
