niasheffield niasheffield

13-11-2018
Mathematics

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Systems of equations substitution 4x-4y=0 y=2x+6

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Sea2Ray Sea2Ray

13-11-2018

4x-4(2x+ 6) = 0
4x-8x-24= 0
-4x-24= 0
-4x= 24
-4x÷-4= 24÷-4
x=-6

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