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-5x + 729
(1/2*-1/4)*(5x^2-2x+6) = -0.625x^2+0.25x-0.75
To do this equation, there would have to be an = in it. If you mean 5x-2y=4, then: 5x-2y=4 -5x -5x = -2y=4-5x Hope this helped!
4 + 5x = 1 5x = 1 - 4 5x = -3 x = -3/5 x = -0.6
8x - 4 = -7 + 5x8x - 5x - 4 = -7 + 5x - 5x subtract 5x from both sides3x - 4 + 4 = -7 + 4 add 4 to both sides3x = -3x = -3/3 = -1