Question 547364
You can't solve it. This is an equation 
with 2 variables, x and y.
The only way to solve it is if you assign
a value to either x or y. Then you can find
the other variable.
For example, if I say {{{ x = 11 }}}, then
{{{ y = 4*11 - 2 }}}
{{{ y = 44 - 2 }}}
{{{ y = 42 }}}
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Another way is if you have 2 equations
{{{ y = 4x - 2 }}} and
{{{ y = -3x + 7 }}}
These intersect at 1 point, (x,y), and
the intersection is the solution
Here's the plot of these 2 lines:
{{{ graph( 400, 400, -10, 10, -10, 10, 4x - 2, -3x + 7 ) }}}