persamaan nilai mutlak |2y + 5| = |7 - 2y|

|2y+5| = |7-2y|
(2y+5)=(7-2y)             \                 /
(2y+5) - (7-2y) = 0       \             
4y - 2= 0                        \           /
4y = 2                              \         /
y = 2/4                               \      /

y = 1/2                                  \/