Question

a Resposta da equacão do primeirlo graul -16+3x+12=-x-48 E A Outra E 15+7x+x=4x -21+ x

Answer 1

A) -16+3x+12=-x-48
    3x+x= -48+16-12
    4x=-44
    x= -44/4
    x= -11

B)15+7x+x=4x -21+ x
     7x+x-4x-x=-21-15
     3x=-36
     x= -36/3
     x=-12