Question 103910
{{{7x-5+3x=6+x-10}}} Start with the given equation


{{{7(-4)-5+3(-4)=6-4-10}}} Plug in {{{x=-4}}}



{{{-28-5-12=6-4-10}}} Multiply



{{{-45=-8}}} Combine like terms. Since the two sides are not equal, this means {{{x=-4}}} is not a solution