Question

Lauren says two expression 3x+4(2x+5) and 6x+5x+5 are equivalent

Answer 1

$\#1\\3x+4(2x+5)=3x+4(2x)+4(5)=3x+8x+20=11x+20\\\\\#2\\6x+5x+5=11x+5\\\\Answer:\boxed{not\ equivalent}$

Answer 2

3x+4(2x+5) = 6x + 5x + 5
3x + 8x + 20 = 6x + 5x + 5
11x + 20 = 11x + 5 
11x - 11x = 5 - 20
0 = -15
Impossible
So Lauren is wrong. this 2 expressions are not equivalent