Question

X+15=4x+3 preciso desaa

Answer 1

x-4x=-15+3
-3x=-12
x=12/3
x=4

Answer 2

x + 15= 4x +3
x -4x +15 -3 = 0
-3x +12=0
-3x =-12 .(-1)
3x = 12
x= 12/3
x= 4
espero ter ajudado