x equals 19
(A) x + 6y = 19 (B) -x + 6y = 17 (A)+(B): 12y = 36 so that y = 3 Substituting this value of y in (A), x + 18 = 19 so x = 1.
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
X=2
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
x = 7
you mean: x+3x+3=x+18 so x=5
x + 10 = 19 x = 19 - 10 x = 9
8.