Solving systems by elimination (Please help asap)

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mwallace

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Solve this system by elimination. Show ALL of your work.

x + 6y = 8
2x - 6y = 16
 

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Just add the two equations. Did you attend class and/or read your notes/textbook?
 
X + 6y = 8
-X+ 3y = -8

Sum the equation vertically to eliminate at least one variable
9y = 0

Divide both sides by 9
y = 0

substitute the given value of y into the equation X + 6y = 8

X + 6(0) = 8

Solve the equation for X

X = 8

Solution: (X,Y) = (8,0)
 
OK, fine. Please watch this video here and come back if you have any questions after viewing it.
 
Mercyangel said:
X + 6y = 8
-X+ 3y = -8

Sum the equation vertically to eliminate at least one variable
9y = 0

Divide both sides by 9
y = 0

substitute the given value of y into the equation X + 6y = 8

X + 6(0) = 8

Solve the equation for X

X = 8

Solution: (X,Y) = (8,0)
Click to expand...
Please do not solve the problem - till and untill the OP has shown significant effort towards solving the problem.
 
Mercyangel said:
X + 6y = 8
-X+ 3y = -8

Sum the equation vertically to eliminate at least one variable
9y = 0

Divide both sides by 9
y = 0

substitute the given value of y into the equation X + 6y = 8

X + 6(0) = 8

Solve the equation for X

X = 8

Solution: (X,Y) = (8,0)
Click to expand...
Hi. I am glad that you want to help! Please understand that we do not solve problems for students on this forum.
 
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