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−7x−6y=4
x=−3y+8


1 Answer

5 votes

Answer:Explanation: We substitute x in the first equation with the value of x given in the second to get: −7(−3y +8) −6y = 4. rearrange and solve for y: 21y − 56− 6y = 4. 15y = 60. y = 60 15 = 4. use this value of y into the second equation: x = − 3 ⋅ 4 +8 = −4.

Explanation:

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User Rod Nelson
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