Question 108253
{{{(7x-5)-(3x+7)}}} Start with the given expression



{{{7x-5-3x-7}}} Distribute the negative



{{{(7x-3x)+(-5-7)}}} Group like terms


{{{4x-12}}} Combine like terms


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{{{(2x^2-3x+1)-(5x^2-3x+10)}}} Start with the given expression



{{{2x^2-3x+1-5x^2+3x-10}}}  Distribute the negative



{{{(2x^2-5x^2)+(-3x+3x)+(1-10)}}} Group like terms


{{{-3x^2-9}}} Combine like terms



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{{{(8x+6)-(10x+16)+(4x-6)}}} Start with the given expression




{{{8x+6-10x-16+4x-6}}} Distribute the negative



{{{(8x-10x+4x)+(6-16-6)}}} Group like terms


{{{2x-16}}} Combine like terms