how do you simplify the following question?
回答 (7)
2009-03-26 10:20 am
✔ 最佳答案
(4-2)x + (1+3)y = 2x +4y
2009-03-26 6:43 pm
4x + y - 2x + 3y
= 4x - 2x + y + 3y
= 2x + 4y
= 2(x + 2y)
= 4x - 2x + y + 3y
= 2x + 4y
= 2(x + 2y)
2009-03-26 5:08 pm
=2x+4y
2009-03-26 5:05 pm
gather the x-terms together. That's 4x - 2x (You can say 4 eggs minus 2 eggs leaves 2 eggs). So that means that's 2x.
Then gather the y-terms together. That's a single y plus 3 more y to give 4y.
i.e. 4x + y - 2x + 3y = (4x - 2x) + (y + 3y) = 2x + 4y
good luck with the eggs and y's!!
Then gather the y-terms together. That's a single y plus 3 more y to give 4y.
i.e. 4x + y - 2x + 3y = (4x - 2x) + (y + 3y) = 2x + 4y
good luck with the eggs and y's!!
2009-03-26 5:05 pm
the x's and the y's are all constant variables within this equation so you can just add them up or take away.
so
4x-2x+y+3y = 2x+4y
so
4x-2x+y+3y = 2x+4y
2009-03-26 5:04 pm
4x - 2x + y + 3y
=2x + 4y
=2x + 4y
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