It is 14x+4 simplified
5x
9x + 3y + 5z - 5x + 4z - 7y = 4x - 4y + 9z
-4
-3x+9x can be simplified to 6x
9x plus 8y
6x - 7
(5x+4)(9x+9) FOIL First (5x*9x=45x**2) Outside (5x*9=45x) Inside (4*9x=36x) Last (4*9=36) 45x**2+45x+36x+36 45x**2+81x+36 9(5x**2+9x+4x)
9x + 5 = 5x + 179x + 5 - 5x = 179x - 5x = 4x5-4x=1717-5=1212 divided by 4 = 3x=3
9 + 5x = -4x + 63 9 + 9x = 63 9x = 54 9x/9 = 54/9 x = 6
4x + 55 = 9x + 10 55 = 5x + 10 45 = 5x x = 9
5x + 3 - 4 + 4x = 9x -1