Math Question and Answers


Question and Answers Forum

All Questions Topic List
Algebra Questions
Previous in All Question Next in All Question
Previous in Algebra Next in Algebra
Question Number 50328 by peter frank last updated on 15/Dec/18

	Answered by peter frank last updated on 16/Dec/18

	$1)$ $x + 2 y - 3 z = a . . . (i)$ $2 x + 6 y - 11 z = b . . . (i i)$ $x - 2 y + 7 z = c . . . . (i i i)$ $e l i m i n a t e x$ $x + 2 y - 3 z = a . . . (i)$ $2 x + 6 y - 11 z = b . . . (i i)$ $- 2 y + 5 z = 2 a - b . . . . (i v)$ $e l i m i n a t e x$ $x + 2 y - 3 z = a . . . (i)$ $x - 2 y + 7 z = c . . . . (i i i)$ $4 y - 10 z = a - c . . . . (v)$ $e l i m i n a t e y a n d z$ $- 2 y + 5 z = 2 a - b . . . . (i v)$ $4 y - 10 z = a - c . . . . (v)$ $5 a - 2 b - c = 0$
	Answered by peter frank last updated on 16/Dec/18

	$2)$ $x + y - z = 1 . . . . (i)$ $2 x + 3 y - a y = 3 . . . . (i i)$ $x + a y + 3 z = 2 . . . . (i i i)$ $e l i m i n a t e x$ $x + y - z = 1 . . . . (i)$ $2 x + 3 y - a y = 3 . . . . (i i)$ $y + (a + 2) z = 1 . . . . (i v)$ $e l i m i n a t e x$ $x + y - z = 1 . . . . (i)$ $x + a y + 3 z = 2 . . . . (i i i)$ $y (a - 1) + 4 z = 1 . . . . (v)$ $e l i m i n a t e y$ $y + (a + 2) z = 1 . . . . (i v)$ $y (a - 1) + 4 z = 1 . . . . (v)$ $(a + 2) (a - 1) - 4] z = a - 2$ $(a^{2} + a - 6) z = a - 2$ $. . . . . .$
	Commented by peter frank last updated on 16/Dec/18

	$how do i get value of a ? please help$
Terms of Service
Privacy Policy
Contact: info@tinkutara.com

Question and Answers Forum