Question 319064
1.{{{3c-2d=13}}}
2.{{{2c+3d=0}}}
From eq. 2,
{{{2c=-3d}}}
Mutliply both sides by 3.
{{{6c=-9d}}}
Multiply eq. 1 by 2,
{{{6c-4d=26}}}
Now substitute for {{{6c}}},
{{{-9d-4d=26}}}
{{{-13d=26}}}
{{{highlight(d=-2)}}}
Then from eq. 2,
{{{2c=-3d}}}
{{{2c=-3(-2)}}}
{{{highlight(c=3)}}}