Question

Resolva as equações :

A) 3x+7= -11

B) 5x-10= 3x+18

C) 2x+24= -18

D) 6x-15= 4x-11

Answer 1

A)3x+7=-11 B)5×-10=3x+18

3x= -11-7 5x-3x=18+10

3x= -18 2x=28

x=-18/3 x=28/2

x= -6 x=14

C)2x+24= -18 D)6x-15=4x-11

2x= -18-24 6x-4x= -11+15

2x= -42 2x=+4

x=-42/2 x=4/2

x=-21 x=2