Question 368484
{{{(4x^3 + 3x) - (-x+7+6x^3)=(4x^3-6x^3)+(3x-(-x))+(-7)}}}
{{{(4x^3 + 3x) - (-x+7+6x^3)=-2x^3+(3x+x)-7}}}
{{{(4x^3 + 3x) - (-x+7+6x^3)=-2x^3+4x-7}}}