0
Anonymous
-5x + 4 > -2x + 31 add 2x and subtract 4 to both sides;
-3x > 27 divide by -3 to both sides and change the symbol of the inequality;
x < 9
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5x+2x=7x2x + 5x = 7x
5
5x-8= -2x+6(+8 = +8)5x=-2x+14(+2x = +2x)7x=14x=14
It is: 10x^2 -4x = 2x(5x-2)
3x + 5x = 2x + 28x = 2x + 26x = 2x = (2/6) = 1/3