Question

my teacher gave me this to do but hasn't taught us anything like this can you help

Answer 1

Answer:

$x - 6 + 9 + (2x - 19) = 23$

*because all the expressions given are in the same segment of line which have the value of 23*

then you solve for x

$x - 6 + 9 + 2x - 19 = 23$

$x - 16 + 2x = 23$

$x + 2x = 23 + 16$

$3x = 39$

$x = 13$