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∙ 2014-07-24 20:33:456x-20 = 8x 6x-8x = 20 -2x = 20 x = -10
-3X
2x+a=p 2x=p-a x=.5p-.5a
2x to the fourth power minus 162 equals -146
3x=2x-12x=-12
what is the solution of x-5y=10 and 2x-10y=20
2x squared minus 5x minus 3 factored is (2x+1)(x-3).
-2x+14=20 -2x=20-14 -2x=6 -2x/-2=6/-2 x=-3
6 - 3x = 4 - 2x 6 = x + 4 x = 2 Check it. 6 - 6 = 4 - 4 It checks.
x2-2x-15 = 0 (x+3)(x-5) = 0 x = -3 or x = 5
6x-20 = 8x 6x-8x = 20 -2x = 20 x = -10
-3X
Better formatting is cos(2x+20)=-0.5
2x+a=p 2x=p-a x=.5p-.5a
The expression simplifies to: -7x-4
2x to the fourth power minus 162 equals -146
3x=2x-12x=-12