Question 160085
Example 1: {{{2(x+5)=2(x)+2(5)=2x+10}}}



Example 2: {{{3(x+y+2z)=3(x)+3(y)+3(2z)=3x+3y+6z}}}



Example 3: {{{3x+3y=3(x+y)}}}



Note: the last example is simply distribution in reverse.