SOLUTION: please post your steps to resolve the following question: Solve by rearranging the equations first. Then use the multiplication principle and then use the elimination method:
3x=8
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-> SOLUTION: please post your steps to resolve the following question: Solve by rearranging the equations first. Then use the multiplication principle and then use the elimination method:
3x=8
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Question 615245: please post your steps to resolve the following question: Solve by rearranging the equations first. Then use the multiplication principle and then use the elimination method:
3x=8y+11
x+6y-8=0
You can put this solution on YOUR website! 3x = 8y + 11
x + 6y - 8 = 0
put both equations into standard form
3x - 8y = 11
x + 6y = 8
:
multiply the 2nd equation by 3, subtract the 1st equation
3x + 18y = 24
3x - 8y = 11
--------------subtraction eliminates x, find y
0 + 26y = 13
26y = 13
y = 13/26
y = .5
:
We can find x using the equation x + 6y = 8, replace y with .5
x + 6(.5) = 8
x + 3 = 8
x = 8 - 3
x = 5
:
We can check out solution of x=5, y=.5 in the original 1st equation
3x = 8y + 11
replace x and y
3(5) = 8(.5) + 11
15 = 4 + 11
