12y-7
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The answer to x2 - 2x - 4y2 - 4y =(x - 2y)(x - 2y - 2)
4y -2 = 6 4y = 6 + 2 4y = 8 y = 2
5x - 4y ≥ -203x - 2y ≤ -8y ≥ -3
6(y - 4)
2x - 3y = -4x + 4y = -9from the second equation x = -9-4y , substitute it in the first equation.2(-9-4y)- 3y= -4-18-8y-3y = -4-18-11y = -4-11y = -4+18-11y = 14y = -14/11now, solve for x :x = -9-4yx = -9-4(-14/11)x = -43/11