SOLUTION
Write out the equation
[tex]4x+21x-2=5(5x+9)[/tex]
Expand the parenthesis
[tex]\begin{gathered} 4x+21x-2=25x+45 \\ 25x-2=25x+45 \end{gathered}[/tex]
Add 2 to both sides
[tex]\begin{gathered} 25x-2+2=25x+45+2 \\ 25x=25x+47 \end{gathered}[/tex]
Subtract 25x from both sides
[tex]\begin{gathered} 25x-25x=25x-25x+47 \\ 0=47 \end{gathered}[/tex]
Since both sides are not equal, there is no solution
Answer: The equation has no solution(C)
The likely error of my friend is that he combine the like terms incorrectly
Answer: Your Friend combined the Like terms incorrectly(B)
