Question

Solve the system of equations.

3x – 7y = –13
–2x + 3y = 7

Answer 1

hint:
multiply first equation by 2 and second by 3

Answer 2

3x -7y + 7y = 7y + 13
3x = 7y + 13
\[x = \frac{ 7y+13 }{ 3 }\]

Answer 3

use substitution.

Answer 4

Then substitute x into the 2nd equation

Answer 5

\[-2(\frac{ 7y+13 }{ 3 })+3y=7\]