x - 3 / 2
Assuming you meant 52x+3=30 52x=30-3 52x=27 x=27/52 or approximately 0.51923
4
x + 2x + 6x = 9x
2x + x + 4 +2x = x + 20 5x + 4 = x + 20 5x - x = 20 - 4 4x = 16 x = 4
6x with 3 over the x, because that is how many x's there are.
X=7
x plus 2 = x + 2 x plus x = 2x
x=1
5x + x - 6x + 2x = 2x
3x + 2x - 8x + 2x = -x
x + 2x + 423 = 3x + 423
-7 +2x = x + 8 2x - x = 7 + 8 x = 15