Question

Please help me with these two questions!! ASAP!!

Answer 1

Check the picture below.

`(2x+5)+75=180\implies 2x+80=180\implies 2x=100 \\\\\\ x=\cfrac{100}{2}\implies \boxed{x=50} \\\\[-0.35em] ~\dotfill\\\\ 3(x+4)=4x-9\implies 3x+12=4x-9\implies 12=x-9\implies \boxed{21=x}`