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1 vote
Comment résoudre une équation ?
Ex: 3x + 4= 2x + 9

2 Answers

5 votes

Bonjour !

Il faut isoler x.

3x + 4 = 2x + 9

3x - 2x = 9 - 4

x = 5

User Sauer
by
8.7k points
4 votes

Given:-


  • \tt \: 3x + 4 = 2x + 9


\:

Solution:-


  • \tt \: 3x + 4 = 2x + 9


\:


  • \tt \: 3x - 2x = 9 - 4


\:


  • \tt \: 1x = 5


\:


  • \tt \: x = \cancel(5)/(1)


\:


  • \underline{ \underline{ \color{black}{ \tt \: x = 5}}}


\:

hope it helps!:)

User TwoLeftFeet
by
8.4k points