ASAP please! I'm Algebra and I will crown you if all answered and correctly

18) 30 + 7x + 15y          19)  7x + 7y          20) 10y + 33 + 5x

              21) 37 + 2x + 7y           22) 9x + 7y + 9     23) 6x + 8              

              24) 8x + 13

Step-by-step explanation:

18)   6 + 6(x + 4) + 15y + x

      6 + 6(x) + 6(4) + 15y + x        Distributed 6 into (x + 4)

      6 + 6x + 24 + 15y + x            Simplified 6(4)

      (6 + 24) + (6x + x) + 15y         Grouped like terms

           30    +     7x     + 15y         Added like terms

19) 3(x + y) + 4(y + x)

    3(x) + 3(y)   + 4(y) + 4(x)         Distributed 3 into (x + y) & 4 into (y + x)

      3x   + 3y   +  4y  + 4x           Simplified

     (3x + 4x) + (3y + 4y)              Grouped like terms

          7x      +       7y                 Added like terms

20) 2y + 8(y + 1) + 5(x + 5)            

     2y + 8(y) + 8(1) + 5(x) + 5(5)    Distributed 8 into (y + 1) & 5 into (x + 5)

     2y + 8y   +  8   +  5x  + 25      Simplified

     (2y + 8y)   + (8 + 25) + 5x       Grouped like terms

         10y        +     33     + 5x       Added like terms

21) 9 + 2(x + 7) + 7(y + 2)

     9 + 2(x) + 2(7) + 7(y) + 7(2)      Distributed 2 into (x + 7) & 7 into (y + 2)

     9  + 2x  +  14  +  7y   +  14       Simplified

     (9 + 14 + 14) + 2x + 7y              Grouped like terms

            37         + 2x + 7y            Added like terms

22) 6(x + y) + y + 3(x + 3)

     6(x) + 6(y) + y + 3(x) + 3(3)      Distributed 6 into (x + y) & 3 into (x + 3)

      6x  +  6y  + y +  3x  +  9        Simplified

      (6x + 3x) + (6y + y) + 9          Grouped like terms

            9x     +      7y    + 9          Added like terms

23) x + 2x+7 + 3x+1              Perimeter is sum of all sides

     (x + 2x + 3x) + (7 + 1)          Grouped like terms

             6x         +    8              Added like terms

24) x+5 + 3x + x + x+5 + 2x+3            Perimeter is sum of all sides

     (x + 3x + x + x + 2x) + (5 + 5 + 3)   Grouped like terms

                        8x          +     13            Added like terms

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step-by-step explanation:

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