Question 27359
{{{-3(x+5)=3(x-1)}}}
*[invoke explain_simplification "-3(x+5)=3(x-1)"]


{{{6-b=5b+30}}}
*[invoke explain_simplification "6-b=5b+30"]


{{{5y-2y=3y+2}}}
*[invoke explain_simplification "5y-2y=3y+2"]


{{{2(7+3t)=-t}}}
*[invoke explain_simplification "2(7+3t)=-t"]


{{{3(a+1)-5=3a-2}}}
*[invoke explain_simplification "3(a+1)-5=3a-2"]


Next time, please separate your questions. Thanks. :)
Hope this helps!