mrylenastewart
13.02.2022 •
Mathematics
Can someone please help me out with this ??? I’d appreciate it so much
Solved
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Ответ:
(0, 1)
Step-by-step explanation:
So with the 2 equations you can either choose which to start with but you need to make the X or Y the opposite from the other equation.
1.
4x + 2y = 2 --> 1( 4x + 2y = 2)
3x - y = -1 --> 2( 6x - 2y = -2)
--
6x + 4x = 10x
2y - 2y = 0 (forced to get rid of)
2 - 2 = 0
Left with:
10x = 0 (Divide both sides by 10 to get X alone)
x = 0
(Choose any ORIGINAL equation)
4x + 2y = 2
4(0) + 2y = 2 (substitute)
Left with:
2y = 2 (divide both sides by 2 to get Y alone)
y = 1
Optional:
Chose the other equation (the oposite from above)
Substitute X and Y in 3x - y = -1
3(0) - (1) = -1
Left with: -1 = -1 (check)
Hope this helps
Ответ:
Hi there!
~
You have to group by 4.
Hope this helped you!