Question

resolva as equações:
a)4x+3/5=-1 b)8x-5/2=9

Answer 1

A)4x=-3/5-1/1( tira m.m.c de 5 e 1) 4x=-3-5 4x=-8 x=-8×4 x=-2 B)8x=5/2+9/1(tira m.m.c de 2e 1) 8x=5+18 8x=23 x=23÷8 x=2,87