Answer:
No I don't agree with their solution; both their answers are wrong.
Correct answer is [tex]b=-30[/tex].
Step-by-step explanation:
Given:
[tex]\frac{2}{5}b+1=-11[/tex]
Now given:
According to Mai [tex]b = -25[/tex] and According to Tyler [tex]b = -28[/tex]
Now we need to find which of them is correct.
So we will solve the given equation we get;
[tex]\frac{2}{5}b+1=-11[/tex]
Subtracting both side by 1 we get;
[tex]\frac{2}{5}b+1-1=-11-1\\\\\frac{2}{5}b =-12[/tex]
Now Multiplying both side [tex]\frac{5}{2}[/tex] we get;
[tex]\frac{2}{5}b\times\frac{5}{2}= -12 \times \frac{5}{2}\\\\b=-6\times 5\\\\b=-30[/tex]
Hence both of them are incorrect, correct answer is [tex]b=-30[/tex].
