It is 5x - 9.
If: x+9+5x = 21+2x Then: x = 3
39 = 5x + 9 5x = 39 - 9 5x = 30 x = 30 / 5 x = 6
5x+18 = 2x+9 5x-2x = 9-18 3x = -9 x = -3 and y = 3
9 + 5x = -4x + 63 9 + 9x = 63 9x = 54 9x/9 = 54/9 x = 6
It is 5x - 9.
5x = 4x + 9 x = 9
6 + 2x = 5x + 9 , 6 - 9 = 5x - 2x , -3 = 3x , x = -1
5x + 4 - 3x + 5 + 2x - 9 = 4x
If: x+9+5x = 21+2x Then: x = 3
5x-4y+9y+x-9+7 = 5x + x - 4y + 9y - 9 + 7 = 6x + 5y - 2 ■
39 = 5x + 9 5x = 39 - 9 5x = 30 x = 30 / 5 x = 6
5x+18 = 2x+9 5x-2x = 9-18 3x = -9 x = -3 and y = 3
4(5x + 3) - 9 = 20x + 3
25x2+30x+9 25*9=225 15*15=225 15+15=3025x2+15x+15x+9[5*5xx 3*5x] [3*5x 3*3]5x(5x+3)+3(5x+3)(5x+3)(5x+3)Answer: (5x+3)2
5x² - 18x + 9 = (5x² - 15x) - (3x - 9) = 5x(x - 3) - 3(x - 3) = (5x - 3)(x - 3).
9 + 5x = -4x + 63 9 + 9x = 63 9x = 54 9x/9 = 54/9 x = 6