63
63 plus 47 plus 42 plus 21 is equal to 173.
If: 6b+21 = 7b-21 Then: 6b-7b = -21-21 And: -b = -42 So: b = 42
It is a symbolic equation which requires triangle = 21.
2x - 13x + 42 = x +ax + b a + b = 2(x - 6.5x + 21) = 34 = a + b
96
-2x = 12 so x = -6 giving -30 + 9 = -42 + 21. Both sides = -21.
The answer is 42. 6 x 7 equals 42. 21 x 2 equals 42.
42 + 42 = 84
x/2 = 21 x = 42
2 *21=42
42.
42 and 42