4x=3x+1 => (4x-3x)=1 => x=1 therefore the value of x is 1.
4x2 - x - 5 = 0 4x2 + 4x - 5x - 5 = 0 4x(x + 1) - 5(x + 1) = 0 (4x - 5)(x + 1) = 0 4x - 5 = 0 or x + 1 = 0 4x = 5 or x = -1 x = 5/4 o x = -1
16x³ - x = 0 By factorization, we obtain: x(16x² - 1) = 0 x(4x - 1)(4x + 1) = 0 Set each term by 0 and solve for x to get: x = 0 and 4x - 1 = 0 and 4x + 1 = 0 x = {0, ±¼}
2x + 2 = 4x -1 2x = 3 x = 1.5
2(4x-1)=18 is the question. In this case, x=2.5
4x-15=1 15+1=16, 16/4=x=4 x=4
4x-1 = 6x-15 4x-6x = 1-15 -2x = -14 x = 7
4x - 7 = -15 4x = -8 x = -2
If: 4x = x+15 Then: x = 5
gâ—¦f(15) = g(f(15)) = g(15/3 - 2) = g(5-2) = g(3) = (4*3-1)/(3-2) = 11/1 = 11 There is some ambiguity about g: is g(x) = (4x-1)/(x-2) or (4x-1)/x - 2 or 4x -1/x - 2 or 4x - 1/(x-2). These would give different answers.
15 is x
4x=3x+1 => (4x-3x)=1 => x=1 therefore the value of x is 1.
x-intercept of y equals -4x plus 4 y = -4x + 4 0 = -4x + 4 -4 = -4x 1 = x So 1 is the x-intercept
4x+7-3x = 15 4x-3x = 15-7 x = 8
4x + 17 = x + 2 4x - x = 2 - 17 3x = -15 x = -5
4x+9=2x-6 2x=-15 x=-7.5 x equals -7.5.
4x - 7 = 1 Therefore, 4x = 8 x = 8/4 x = 2