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Mathematics
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7 April, 09:44
Given the system of equations:
6x+y=9.7
4x+2y=9.8
What is the value of x?
+2
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1
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Tiara Obrien
7 April, 13:01
0
I used the substitution method.
The first equation is what I used: y=-6x+9.7
So I plugged in y in the second equation.
4x + 2 (-6x+9.7) = 9.8
4x-12x+19.4=9.8
Combine like terms
-8x+19.4=9.8
Subtract 19.4 on both sides
-8x=-9.6
Divide by - 8 on both sides and you get
x=1.2
If you wanted to find y use either equation and plug in for x with the value of x!
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