WILL MARK BRAINIEST! 25 points!!! What is the x-coordinate of the solution to the following system of equations? 2x + y = −4 5x
+ 3y = −6 x = −6 x = 6 x = −8 x = 8 please show work, I really don't understand this.
2 answers:
Answer:
x=-6
Step-by-step explanation:
2x+y=-4
5x+3y=-6
solve :
multiply first equation by 3
6x+3y=-12
5x+3y=-6
subtract the two equations : 6x+3y-5x-3y=-12-(-6)
x=-12+6
x=-6
Answer:
x= -6
Step-by-step explanation:
2x + y = −4 ⇒ y= -2x -4
5x + 3y = −6
replacing y with -2x-4
- 5x+3(-2x-4)= -6
- 5x - 6x - 12= -6
- -x = 12-6
- -x= 6
- x= -6
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