Thu wants to play "guess my number".she states,"when I triple my number and add five,I get twenty-six. What's my number?" what i

Question

AlekseyPX

4 years ago

10

Thu wants to play "guess my number".she states,"when I triple my number and add five,I get twenty-six. What's my number?" what i

s her number?

Mathematics

1 answer:

Mama L [17] · Answer 1 · 2021-12-26T18:50:25+03:00

Mama L [17]4 years ago

6 0

Let's break this up:
let x = the number
"when I triple my number" is the same as
3x
"and add five" is the same as
+5
We combine it to get
3x+5
"I get twenty-six"
=26
combine to get
3x+5=26
Now we just solve:
subtract 5 from both sides to get
3x=21
divide by 3 to get
x=7