Question

Resolver y Verificar
-14+3x=4x+21+4x

Answer 1

-14+3x=4x+21+4x
-14-3x=8x+21
-3x-8x=21+14
-11x=35
x=-35/11

Answer 2

-14+3x=4x+21+4x

-14+3x=8x+21
-14-21=8x-3x
-35=5x
x=-7
espero que te sirva