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∙ 9y ago(4 + 2x) - (-2x + 1) = 13 + 6 4 + 2x + 2x -1 = 19 4x +3 = 19 4x = 19 - 3 4x = 16 therefore x = 16/4 x = 4
-2x+16 = 0 -2x = -16 x = 8
16 + 2x = 10 + 8xSubtract 2x from each side:16 = 10 + 6xSubtract 10 from each side:6 = 6xDivide each side by 6:1 = x
(-2x2 + x + 1) / (x - 1) = (-2x - 1)(x - 1)/(x - 1) = -2x - 1
2x + 5y = 16 -2x - 3y = -14 2y = 2 y = 1 / x = 5.5 (5.5,1) or (5 1/2,1)
It is equivalent to: 2x^2 +31x -16
2x - 1 = x + 15 Add 1 to both sides: 2x = x + 16 Subtract x from both sides: x = 16
(4 + 2x) - (-2x + 1) = 13 + 6 4 + 2x + 2x -1 = 19 4x +3 = 19 4x = 19 - 3 4x = 16 therefore x = 16/4 x = 4
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16 + 2x = 10 + 8x 2x - 8x = 10 - 16 -6x = -6 x = 1 Check: 16 + 2(1) = 10 + 8(1) 18 = 18
2x + 4 = 16 2x = 16 - 4 2x = 12 x = 12/2 x = 6
2x+4 = -16 2x = -16-4 2x = -20 x = -10
-2x+16 = 0 -2x = -16 x = 8
16 + 2x = 10 + 8xSubtract 2x from each side:16 = 10 + 6xSubtract 10 from each side:6 = 6xDivide each side by 6:1 = x
(-2x2 + x + 1) / (x - 1) = (-2x - 1)(x - 1)/(x - 1) = -2x - 1
2x + 7 + 2x = 23 4x + 7 = 23 4x = 16 x = 16/4 x = 4