Question

Solve by elimination 2x+5y+2z =-38
3x-2y+4z=17
-6x+y-7z=-12​

Answer 1

$\huge{\tt{\red{}\green{A}\purple{N}\pink{S}\blue{W}\orange{E}\red{R}}}➽$

$⇨3x - 2y + 4z = 17$

$⇨3x - 2y + 4z - ( - 2y + 4z) = 17 - (2y + 4z)$

$⇨3x = 17 + 2y - 4z$

$⇨\frac{3x}{3} = \frac{17}{3} + \frac{2y}{3} - \frac{4z}{3}$

$⇨x = \frac{17 \times 2y - 4z}{3}$

Brainlist please

Answer 2

Answer:

3x−2y+4z=17

⇨3x - 2y + 4z - ( - 2y + 4z) = 17 - (2y + 4z)⇨3x−2y+4z−(−2y+4z)=17−(2y+4z)

⇨3x = 17 + 2y - 4z⇨3x=17+2y−4z

⇨\frac{3x}{3} = \frac{17}{3} + \frac{2y}{3} - \frac{4z}{3}⇨33x=317+32y−34z

⇨x = \frac{17 \times 2y - 4z}{3}⇨x=317×2y−4z