12 Here are two equations.
y = 5x - 9 and x + y = 7
a Use this graph to find an
approximate solution of
the equations.
b Use algebra to find exact
solutions of the equations,
Helpppp

12 Here are two equations y 5x 9 and x y 7 a Use this graph to find an approximate solution of the equations b Use algebra to find exact solutions of the equati class=