Respuesta :
Answer:
x=3.75
Step-by-step explanation:
15x - 45= 3x
Subtract 15x from both sides:
-45 = -12x
Divide both sides by -12, the -12's cancel and you get:
-45/-12 = 3.75
x= 3.75
I hope this helps!! blessings, xx,nm! :)
Given :-
[tex]15x-45=3x[/tex]
Answer :-
[tex]15x-3x =45[/tex]
[tex]12x=45[/tex]
[tex]x = \frac{15}{4} [/tex]
or
[tex]x = 3.75[/tex]
Extra Information :-
- Sign change is mandatory if we change the place ,Example - if it was (+) if we change the place it will become (-) and if it was (-) and we change the place then it will become (+) ,but if we don't change the place then we don't need to change the sign ( +,-) .