-55
The answer is 7
42 72
x + 2x + 5 = x +19 3x + 5 = x +19 3x - x = 19 - 5 2x = 14 x = 7
4x plus 7 plus 3x equals 19 plus xx = 2
5+x=42. 42-5=37 x=37
x equals 19
-55
15
The answer is 7
2x - 13x + 42 = x +ax + b a + b = 2(x - 6.5x + 21) = 34 = a + b
if 3x+5=x+19 then x=7
7
19 plus 54 equals 73. when you subtract like this x+19=73 X+19=73 -19 -73 0 54
1
42 72
X=2