What's the substitution of 3x-2y=4 x+3=5

Question

3x-2y=4

x+4=5

Answer 1

J,

For the given equations, solve the second one for x, and substitute it into the first equation.

 

3x - 2y = 4              x + 4 = 5

                                    x = 1

3(1) - 2y = 4

3 - 2y = 4

    -2y = 1

       y = -1/2

 

Of course, if the second equation is supposed to have a y in it, this is not the right answer.