It's a linear equation in 'x'.
To solve it:
x + 19 = 42
Subtract 19 from each side of the equation:
x = 23
5+x=42. 42-5=37 x=37
x equals 19
-55
The answer is 7
15
2x - 13x + 42 = x +ax + b a + b = 2(x - 6.5x + 21) = 34 = a + b
7
if 3x+5=x+19 then x=7
19 plus 54 equals 73. when you subtract like this x+19=73 X+19=73 -19 -73 0 54
42 72
1
X=2