Question 238650
To solve by substitution:
1. Leave first equation alone for now.
2. Solve for y on the second equation.
3. Plug in this value into the first eqn to find x
4. Once you know the x value, plug it again in the first equation to find y.
.
Problem:
{{{y=-4x-7}}}
{{{y=3x}}}
.
{{{3x=-4x-7}}}
{{{7x=-7}}}
{{{x=-(7/7)}}}
{{{x=-1}}}
.
{{{y=-4x-7}}}
{{{y=-4(-1)-7}}}
{{{y=4-7}}}
{{{y=-3}}}
.
Your answers are {{{x=-1}}} and {{{y=-3}}}