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1 vote
2y+x=-15

x=3y
2y+(3x)=-15
2y + (3*3y) = -15
11y=-15
y = -15/11

4x+7y=19
y=x+9
4x+7(x+9)=19
4x + 7x + 63 = 19
11x = -44
x = -4

y=6x+11
2y-4x+14
2(6x+11)-4x+14

2x-8y=6
y=-7-x
2x-8(-7-x)=6

x=2y-1
3x-2y=-3
3(2y-1)-2y=-3


what do x and y equal in each of these

2 Answers

6 votes

Answer:

X = -1

Y = -2

Explanation:

−4x+3y=−2

y=x−1

-4x + 3(x-1) = -2

-4x + 3x -3 = -2

-x = 1

x = -1

y = -1 -1

y -2

I also did it on khan an I got it right

User Enilce
by
8.1k points
4 votes
x=4. y=2. i hope I helped
:))
User Peter Rasmussen
by
8.5k points