Math, asked by Aayushsharma567801, 1 year ago

Subtract the sum of 13x-4y+72 and -6z+6x+3y from the sum of 6x-4y-4z and 2x+4y-7.

Answers

Answered by sunnyrock123
3
yes this ANSWER is correct
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Answered by BeAware
4
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\large\mathsf\red{Sum \ of \ first \ 2 \ terms \ -}

\mathsf{(13x - 4y + 72) + (-6z + 6x + 3y)}

\large\mathsf\green{Open \ the \ Brackets}

\mathsf{= \ 13x - 4y + 72 - 6z + 6x + 3y}

\large\mathsf\green{Combine \ like \ terms}

\mathsf{= \ 13x + 6x - 4y + 3y + 72 - 6z}

\mathsf{= \ 19x - y - 6z + 72} ______________(1)


\large\mathsf\red{Sum \ of \ second \ 2 \ terms \ -}

\mathsf{(6x - 4y - 4z) + (2x + 4y - 7)}

\large\mathsf\green{Open \ the \ Brackets}

\mathsf{= \ 6x - 4y - 4z + 2x + 4y - 7}

\large\mathsf\green{Combine \ like \ terms}

\mathsf{= \ 6x + 2x - 4y + 4y - 7 - 4z}

\mathsf{= \ 8x - 4z - 7} __________________(2)


\mathsf{Now,}

\mathsf\pink{Subtract \ (1) \ from \ (2)}

\mathsf{(8x - 4z - 7) - (19x - y - 6z + 72)}

\large\mathsf\green{Open \ the \ Brackets}

\mathsf{= \ 8x - 4z - 7 - 19x + y + 6z - 72}

\large\mathsf\green{Combine \ like \ terms}

\mathsf{= \ 8x - 19x - 4z + 6z - 7 - 72 + y}

\large\textbf\blue{= \ -11x + 2z - 79 + y}

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