Question

3x+3y=10 -9x-9y=-30 please help

Answer 1

Answer:

             Infinitely many solutions.

Explanation:

              In this case we gonna use ELIMINATION BY ADDITION method.For that first we are gonna eliminate the terms containing ( X ).

 Equation no 1:

                            3x + 3y = 10

 Equation no 2:

                           -9x - 9y = -30

  Now multiply equation no 1 with (3 )

                           3(3x + 3y) = 3(10)

                              9x + 9y = 30             ( equation no 1 )

   Now ADD both the equations

                            9x + 9y = 30

                            -9x - 9y  =-30

                                       0    = 0