It could be: 2(x-8.5) = 2x-17
Here is how you solve this problem... 5x*4-3x*5*2x-9= (Combine like-terms) 5x-3x*2x= 2x*2x=(2x)2 (Add the rest of the problem) (2x)2*4*5-9=(2x)2*20-9 (2x)2*11 (2x)2 *11= your answer
2x - 6 = 4 2x = 4 + 6 = 10 x = 10/2 = 5 ∴ x = 5
2x+5=9 2x+5-5=9-5 you leave only the x on one side. 2x=4 x=2
2x^2 + 3x - 20 = 0 is 2x^2 + 8x - 5x -20 = 0 is 2x(x + 4) -5(x + 4) = 0 is (2x - 5)(x +4) = 0 Hence 2x -5 = 0 which gives x = 2.5 or x + 4 = 0 which gives x = -4
If: -2x+5 = -17 Then: x = 11
It could be: 2(x-8.5) = 2x-17
4X - 7 = 2X + 5 subtract 2X from each side 4X - 2X - 7 = 2X - 2X + 5 2X - 7 = 5 add 7 to each side 2X - 7 + 7 = 5 + 7 2X = 12 divide both sides integers by 2 (2/2)X = 12/2 X = 6 --------------check in original equation 4(6) - 7 = 2(6) + 5 24 - 7 = 12 + 5 17 = 17 -----------checks
2x-6=4 6+4=2x 10=2x 10/2=x 5=x x=5
(4, 5)
4x + 1 = 2x + 5 Subtract '1' frp, bpth sides Hence 4x = 2x + 4 Subtract '2x' from botbh sides 2x = 4 Divide both sides by '2' x = 2 The answer!!!!!!
-2x^4+16 +2x^4+9-3x^5=-3x^5+25. There is no "answer" because there is no equation.
y=2x-4 y=2x-5 y=1 1=2x-4 -2x = -5 x=2/5 the solution is (x,y) = (2/5,1)
12
To solve the equation 2x + 5 = 17, we first subtract 5 from each side, and get 2x = 12. We then divide each side by 2 and get x = 6.
They are: 17+12 = 29 and 17-12 = 5
2x+5y=20 Solve for y -2x -2x 5y=20-2x 5 5 5 y=4-2x 5