2x + x + 4 +2x = x + 20 5x + 4 = x + 20 5x - x = 20 - 4 4x = 16 x = 4
5, (x + 4).
5X + 25 = 20 subtract 25 from each side 5X + 25 - 25 = 20 - 25 5X = - 5 divide both side integers by 5 X = - 1 check 5(-1) + 25 = 20 - 5 + 25 = 20 20 = 20 checks
-10x + 5x = -5x
5x+5x-10 10x-10 is the only answer you can get from this
5x + 20 = 4x +30 5x - 4x = 30 - 20 x = 10
5x+1=20 5x=20-1 5x=19 5x/5=19/5 x=19/5
5x + 2 = 22 5x = 22 - 2 5x = 20 5x/5 = 20/5 x=4
Since 5x + 20 is a multiple of x + 4, it is automatically the LCD of this problem.
It is: -5x-20 when simplified
5x+3 = -17 5x = -17-3 5x = -20 x = -4
2x + x + 4 +2x = x + 20 5x + 4 = x + 20 5x - x = 20 - 4 4x = 16 x = 4
-5x + 30 = 20 -5x + 30 - 30 = 20 - 30 -5x = -10 -5x / -5 = -10 / -5 x = 2
-4 5x + 2 = -18 0x + -2 = -2 ---------------- 5x + 0 = -20 5x / 5 = -20/5 x = -4
5x + 4y = 204y = -5x + 20y = (-5/4)x + 5
5, (x + 4).
It is 145