2x-3y=1 and -2x+5y=1

Question

Tyson Payton3532

Answer 1

2x-3y=1 and -2x+5y=1 multiply the second equation by (-1)

-1(-2x + 5y = -1)  multiply each term by -1.

2x - 5y = -1

2x - 3y = 1  subtract the equations

      -2y = 0 so y = 0

plug back into the first equation

2x - 0 = 1

x = 1/2, y = 0

second method:

2x - 3y = 1

-2x + 5y = 1  dd the two equations together:

          2y = 2

y = 1   plug into the first equation:

2x - 3 = 1

2x = 4

x = 2, y = 1

Comments

-1(-2x + 5y = -1)

2x - 5y = 1!!!!!!