Solve the linear system. x + y = -3 y = 2x
x + y = -3 ; y = 2x; x + 2x = -3 ; 3x = -3 ; x = -3/3 ; x = -1 ; -1 + y = -3 ; y = -3 + 1 ; y = -2 ; Solution set: x = -1, y = -2
Question
Updated 7/29/2018 6:54:43 PM
Edited by Masamune [7/29/2018 6:54:00 PM]
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x + y = -3 ;
y = 2x;

x + 2x = -3 ;
3x = -3 ;
x = -3/3 ;
x = -1 ;

-1 + y = -3 ;
y = -3 + 1 ;
y = -2 ;

Solution set: x = -1, y = -2

Questions asked by the same visitor
Written in slope-intercept form, the equation x + 2y = 4 is
Question
Updated 11/21/2017 8:17:06 AM
x + 2y = 4 written in slope-intercept form is y = -x/2 + 2.
x + 2y = 4
2y = -x + 4
(2y = -x + 4)/(2)
y = -x/2 + 2
Input the equation of the given line in slope-intercept form. The line with m = 3 and b = -2
Question
Updated 7/14/2014 11:02:18 AM
The slope-intercept form is y = mx + b. Given m = 3 and b = -2, the equation of the line in slope-intercept form is: y = 3x - 2
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