5x+3-45 = 6x+9-30/1
you want to group like terms.
subtract the 5x from both sides, so you have
3-45= 6x-5x-30/1
you will then have
-42 = x -30
add 30 to both sides and you get
-12 = x
you want to group like terms.
subtract the 5x from both sides, so you have
3-45= 6x-5x-30/1
you will then have
-42 = x -30
add 30 to both sides and you get
-12 = x