Question

Let's find what must be subtracted from 11x-7y-9z to get 6x+3y-5x​

Answer 1

Step-by-step explanation:

11x - 7y - 9z - (6x + 3y - 5x)

11x - 7y - 9z - (x + 3y)

11x - 7y - 9z - x - 3y

(11x - x) + (-7y - 3y) + (-9z)

10x - 10y - 9z [Answer]

Answer 2

Given :

• ${\sf{11x\:-\:7y\:-\:9z\:-\; \bigg(6x\:+\:3y\;-\:5x\bigg)}}$

To find :

• Find x, y, z ?

Solution :

${\sf{11x\:-\:7y\:-\:9z\:-\; \bigg(x\:+\:3y\bigg)}}$

${\sf{11x\:-\:7y\:-\:9z\:-\;x\:-\:3y}}$

$~~~~~~~~~~$${\sf{\bigg(11x\;-\:x\bigg)\:+\; \bigg(-7y\:-3y\bigg)\:+\; \bigg(-9z\bigg)}}$

:$\implies$${\underline{\boxed{\frak{\pink{10x\:-10y\:-\:9z}}}}}$

$~~~~$$\qquad\quad\therefore{\underline{\textsf{\textbf{Hence, Proved!}}}}$

$~~~~~~~~~~~~~~$ _______________________