3(x + 2) = x - 18 3x + 6 = x - 18 3x - x = -18 - 6 2x = -24 x = -12
3x+12=x+48: 3x-x=-12+48 2x=36 x=18
4x+12-5x-30=-x-18
-6
4 [ 3 (x-6) ] = 12 4 [ 3x -18 ] = 12 12x - 72 = 12 12x = 84 x = 7
You need to be careful in how you write such questions as it is important to know if you mean: x - 12/2 = 18 or (x-12)/2 = 18 If x - 12/2 = 18 then x = 18 + 12/2 x = 18 + 6 x = 24 If (x-12)/2 = 18 then x - 12 = 18 * 2 x - 12 = 36 x = 36 + 12 x = 48
x + 12 = 18 Therefore, x = 18 - 12 x = 6
If you mean -x +x/3 = 12 then the value of x is -18 Check: --18 +(-18/3) = 12
12 x 18 = (12 x 10) + (12 x 8)
If you mean 4-x = 18 then the value of x is -12 because 4--12 = 18
18 inches = 18/12 ft 14 inches = 14/12 ft (18/12) x (14/12) = (18 x 14) / (12 x 12) = 252/144 = 1.75 ft2
3x+12 = 18 3x = 18-12 3x = 6 x = 2
18 x 12 = 216
x + y = 18, x - y = 6 y = 18 - x x - (18 - x) = 6 x - 18 + x = 6 2x - 18 = 6 2x = 24 x = 12 (12) + y = 18 y = 6
12 x 18 = 216
432 x 12 inch x 12 inch bricks for an area 18 feet x 24 feet
12 feet x 18 feet = 216 square feet.