4x + 55 = 9x + 10 55 = 5x + 10 45 = 5x x = 9
5x + 51 = 9x + 11 Becomes 40 = 4x So x = 10
9x = 4x + 45 5x = 45x = 9
9 + 5x = -4x + 63 9 + 9x = 63 9x = 54 9x/9 = 54/9 x = 6
2x + 5x - 1 = 9x 7x - 1 = 9x -1 = 9x - 7x -1 = 2x -1/2=x
4x + 55 = 9x + 10 55 = 5x + 10 45 = 5x x = 9
5x + 51 = 9x + 11 Becomes 40 = 4x So x = 10
9x = 4x + 45 5x = 45x = 9
9 + 5x = -4x + 63 9 + 9x = 63 9x = 54 9x/9 = 54/9 x = 6
2x + 5x - 1 = 9x 7x - 1 = 9x -1 = 9x - 7x -1 = 2x -1/2=x
5x+4x-10 = 35 9x = 35+10 9x = 45 x = 5
x=2/3
4x+7=9x+7 -5x=0 x=0
-20 + 9x = -17-20 + 17 = -9x-3 = -9x |: (-9)0.333... = xx = 0.333...
9x + 3x - 9x = 6 + 8x - 113x = 8x - 11-5x = -11x = 2.2 or 11/5
minus 4 plus 9 = 5, so 5x
9x+3-25 = 4x-2 5x = 20 x = 4