Answer:
x=2
Step-by-step explanation:
x=2 in the equation 3x+5=19-4x
<em>Greetings from Brasil...</em>
Be that unknown number X
Then we can write the following expression:
X + 4.7 = 8.1
<h2>X = 3.4</h2>
Answer:
so easy and obvious dude
Step-by-step explanation:
Answer:
n=64 and n+1=65
Step-by-step explanation:
64 + 65 equals 129