Question 94411
{{{20x - 5(4x + 3) = -12}}} Plug in y = 4x + 3


{{{20x - 20x -15 = -12}}} Distribute




{{{20x-20x=-12+15}}}Add 15 to both sides



{{{0x=-12+15}}} Combine like terms on the left side



{{{0x=3}}} Combine like terms on the right side



{{{0=3}}} Simplify


Since this equation is <font size=4><b>never</b></font> true for any x value, this means there are no solutions.