If the letters are the same, ignore them, and just do the math. Then put the numbers back at the end.
1: 7-3 = 4x
2: 5-7 = -2y
3: -8+3 = -4y
4: -6-7 = -13x
For this one, you need to combine the ones with the same letter:
5: 4+5 = 8; 3+6 = 9, so 8x+9y
This one you need to distribute out, then combine the letters that are the same:
3x+3y+y = 3x+4y
2007-11-18 09:37:25
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answer #1
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answered by Ditdah 2
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1 - 7X-3X
= -7x + -3x (you get to re-write it this way if you'd like)
= -10x
2 - 5Y-7Y
= -5y + -7y (same thing)
= -12y
3 - -8Y+3Y
= 8y +3y (two negatives equals a positive)
= 11y
4 - -6X_7X
= 6x-7x (again .. two negatives ...)
= -1x
5 - 4X+3Y+5X+6Y
=-4x + 6x + 3y + 6y (group your variables together .. you can't put y's and x's together, so your answer will have both an x and a y in it)
= 2x + 9y
6 - 3(X+Y)+Y
* distributive property *
= -3x - 3y + 1y (multiply -3 by both x AND y)
= -3x - 2y (add/subtract like variables)
2007-11-18 09:25:24
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answer #2
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answered by djdubs 3
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1 - 7X-3X
This is adding two negative numbers, so -10x
2 - 5Y-7Y
again, adding two negative numbers, so -12y
3 - -8Y+3Y
do you really mean --?
In that case --8y = +8y, so 11y
otherwise -8y + 3y = -5y
4 - -6X_7X
assume you mean --6x - 7x = +6x - 7x = -x
if you mean -6x - 7x, then -13x
5 - 4X+3Y+5X+6Y
just add the x's and y's separately
-4x+5x = x
3y + 6y = 9y
so, x + 9y
6 - 3(X+Y)+Y =
-3x - 3y + y =
-3x -2y
2007-11-18 09:24:33
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answer #3
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answered by Steve A 7
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actual!!! It replaced into some thing greater formal, yet I used to speak to Him regardless of the rationalization and because I stored forward to my own ambition and needs, whilst He gave me avertisements I saved none and did my way going into further and further trubles! Into an end, interior a deep depresion, He saved my existence (!!!) the very 2d I left away of all my deep needs... There, empty heart, i replaced into crammed with God's mild and Peace and Love - an entire New existence, a sparkling physique, a sparkling imaginative and prescient for the duration of the final and the destiny :) :) :) definite, he's my Saviour!!!
2016-12-16 12:26:22
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answer #4
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answered by selders 4
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you got some work ahead of ya!
2007-11-18 09:21:06
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answer #5
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answered by All That Glitters isn't Gold 5
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