Solving systems of equations alison ward 11182015

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Solving Systems of EquationsAlison Ward 11/18/2015 8:01:37 PMTo check your answer:3x-2y=10 & you got (-2,-8) as a solution set.so, 3x-2y=103(-2)-2(-8)=10-6+16=1010=10
You are correct. RE: Solving Systems of EquationsJessica Phillips 11/19/2015 6:34:57 AMI haven't done one using substitution on here yet, so here it goes.2y = x + 26x - 12y = 0Rearrange the first equation so that one variable is completely isolated.x = 2y - 2Substitute x as 2y - 2 in the second equation to solve for y.6(2y - 2) - 12y = 0Use distribution to get rid of parentheses.12y - 12 - 12y = 0Combine like terms.0y - 12 = 0-12 = 0 FALSEBecause there is an untrue solution, this equation has no solution. The lines would beparallel. Solving systems of linear equationsPorsche Travis 11/18/2015 8:38:21 PMHonestly the graphing seems to be the toughest for me, so I tend to use substitution more often. y=3x+7y=2x-8To find he value of x, set the equations equal to each other:
-3x+7=2x-815=5x3=xThen we substitute the x value we found to find the y value:y=-3x+7y=-3(3)+7y=-9+7y=-2To check:y=-3x+7 y=2x-8-2=-3(3)+7 -2=2(3)-8-2=-9+7 -2=5-8-2=-2 -2=-2So the solution set is (3,-2)Here's a new question:y=4x+3y=xRE: Solving systems of linear equationsNichole Bowman 11/18/2015 8:58:52 PMI used substitution as well.y=4x+3y=x4x+3=x3x=-3x=-1y=4(-1)+3y=-1
Check:-1 = -1Solution set = {(-1,-1)} RE: Solving systems oflinear equationsPorsche Travis 11/19/2015 7:31:39 PMPlease give another question that other students can complete, thanks! RE: Solving systems of linear equationsCarrie Viles 11/19/2015 9:08:55 PMIn a paint factory, an old conveyer line has filled 20 barrels of paint, & is filling more at a rate of 6 barrels per minute. A worker just switched on a newer line that can fill 10 barrels per minute. In a little while, the two lines will have filled an equal number of barrels. How many barrels will each line have filled?RE: Solving systems of linear equationsThomas Baker 11/21/2015 6:46:13 PMModified:11/21/2015 6:49 PM Good question. It make me think a little bit on how to set it up for this section of our work.The old conveyor line produces 6 per minute, starts with 20 & ends with an unknown amount equal to the new line line which produces 10per minute.
Next question:Two small pitchers & one large pitcher can hold 8 cups of water. One large pitcher minus one small pitcher constitutes 2 cups of water. How many cups of water can each pitcher hold?RE: Solving systems of linear equationsR&i Smotherman 11/22/2015 7:07:17 PMTwo small pitchers & one large pitcher can hold 8 cups of water. One large pitcher minus one small pitcher constitutes 2 cups of water. How many cups of water can each pitcher hold?

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