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1 vote
6x-4y=54
-9x+2y=-6
substitution

User OlegI
by
7.4k points

2 Answers

3 votes
-9x + 2y = -6 and that's how u solve it and u can thank me wants u get it right lol
User Kunal Mukherjee
by
7.8k points
1 vote

\left \{ {{6x-4y=54} \atop -9x+2y=-6\ \ } \right. \\\\ \left \{ {{6x-4y=54} \atop {-18x+4y=-12}} \right. \\+-----\\addition\ method\\\\ -12x=42\ \ \ | divide\ by\ -12\\ x=-3.5\\\\ 2y=-6+9x\\ y=(-6+9x)/(2)=(-6+31.5)/(2)=(25.5)/(2)=12.75\\\\ \left \{ {{y=12.75} \atop {x=-3.5}} \right.
User Vinkal
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