3x - 5 + 3x = 1x + 15 3x + 3x -1x = 15 + 5 5x = 20 5x/5 = 20/5 x = 4
(5x - 3)(3x + 5)
x = 27
5x + 5 = 8 -3x 5x = 3 -3x 8x = 3 x = 0.375
15x2+16x-15 = (3x+5)(5x-3) when factored
3x - 5 + 3x = 1x + 15 3x + 3x -1x = 15 + 5 5x = 20 5x/5 = 20/5 x = 4
(5x - 3)(3x + 5)
x = 27
5x + 4 - 3x + 5 + 2x - 9 = 4x
5X + 6 = 2X + 15 -2X -2X 3X + 6 = 15 -6 -6 3X = 15 ---- ----- 3 3 x = 5 im so smart.
5x + 5 = 8 -3x 5x = 3 -3x 8x = 3 x = 0.375
15x2+16x-15 = (3x+5)(5x-3) when factored
Presumably, this is an equation in finding the value of x 3x+5/4 = -2x+15 3x+1.25 = -2x+15 3x+2x = 15-1.25 5x = 13.75 x = 2.75
2(5) + 3(5) = 10 + 15 = 25also 2x+3x=5x and 5(5)=25â–
4x + 5 = 3x + 84x-3x + 5 - 5 = 3x - 3x + 8 -5x = 3
2x + 5
x^(2) + 3x - 7 = 5x + 8 Subtract '8' from both sides Hence x^(2) + 3x - 15 = 5x Subtract '5x' from both sides Hence x^(2) -2x - 15 = 0 It is now in quadratic form and will factor. Hence ( x -5)(x + 3) = 0 x = 5 & x = -3