You add 8x to each side. This gives you 5 = 16. Since this has no solution, the original equation doesn't have any solution, either.
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5x2=8x Divide with x on both sides5x= 8 Solve xx=8/5
x=1, y=1
8x plus 4y equals 5 is 8x + 4y = 5.
x^2 -8x-4=0 x=[8±√(64+16)]/2 x=(8±4√5)/2 x=4±2√5
8-8x=8x+18 Through simple algebra, this can be manipulated to solve for x: 8=16x+18 -10=16x -5/8=x