Question

resolva as equacoes A) 2x-3=-10+x
B) 2x+4=5x+3
C) 2(x+3)=3(x-1)
D) x+4(x+3)=4(2x-3)

Answer 1

A)2x-x=-10+3          x=-7

B)2x-5x=3-4           -3x=-1(-1)      3x=1       x=1/3

C)2x+6=3x-3       2x-3x=-3-6         -x=-9 (-1)        x=9

D)x+4x+12=8x-12          5x-8x=-12-12      -3x=-24 (-1)     x=24/3      x=8