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22 votes
7x+4=4x+7
please help lol

2 Answers

12 votes

Answer:

3x − 3 = 0

3(x − 1) = 0

x = 3 /3 = 1

User Ji Mun
by
4.7k points
6 votes

Step-by-step explanation

  • Given the equation.


7x + 4 = 4x + 7

  • Solve for the value of x by making x as the subject of equation.


7x - 4x = 7 - 4 \\ 3x = 3 \\ x = (3)/(3) \longrightarrow \frac{ \cancel{3}}{ \cancel{3}} = 1 \\ x = 1

  • Check the answer by substituting x = 1 in the equation.


7(1) + 4 = 4(1) + 7 \\ 7 + 4 = 4 + 7 \\ 11 = 11 \longrightarrow \sf{true} \: \: \green{ \checkmark}

Hence, the solution is x = 1.

Answer


\large \boxed{x = 1}

User Peter S Magnusson
by
5.7k points