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Q: 2x - 3y equals 4 and x plus 4y equals -9?

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2x + 3y = 17 3x + 4y = 24 (2x + 3x) + (3y + 4y) = (17 + 24) 5x + 7y = 41

2x + 4y - 5x + 3y = 7y - 3x

Since 2x-3y=4y=8 we can say that 4y=8 therefor y=2 We can also say that 2x-3y=4y and as y=2 2x-6=8 so 2x=14 and x =7 so y=2 and x=7

y=2

1) 2x + 4y = -62) x -3y = 7We can add 3y to both sides of equation 2) to getx = 3y + 7Now we can substitute 3y + 7 for x in equation 1).In other words, we replace any 'x'es in equation 1) with 3y + 7.2x is two times x, so this becomes 2(3y + 7) which is two times 3y_and_sevenEquation 1) becomes2(3y + 7) + 4y = -6or6y + 14 + 4y = -6or10y + 14 = -6Subtracting 14 from both sides,10y = -20Dividing both sides by 10,y = -2.Substituting -2 for y in equation 1),2x - 8 = -6Add 8 to both sides2x = 2x = 1Check our results with equation 2x - 3y = 71 + 6 = 7

Related questions

2x + 3y = 17 3x + 4y = 24 (2x + 3x) + (3y + 4y) = (17 + 24) 5x + 7y = 41

10x - 3y + 2x - 4y =(10x + 2x) + (-3y - 4y) =12x - 7y

2x + 4y - 5x + 3y = 7y - 3x

6x plus 4y

10x+2x-3y-4y=12x-7y

If: 2x-3y = -15 and x = 4y Then: x = -12 and y = -3

The ordered pair is (-1, -2).

It is the same as: 6x+4y

4x + 3y - 2x - 7y2x - 4y

Since 2x-3y=4y=8 we can say that 4y=8 therefor y=2 We can also say that 2x-3y=4y and as y=2 2x-6=8 so 2x=14 and x =7 so y=2 and x=7

3x + 7y

4y + 4 = 3y - 5 y = -9

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