Question

Relacione a coluna das equações de acordo com suas raizes corretas

(A) x + 5 = 7
(B) 3x + 8 = 5
(C) 2 + 5 = - x + 17
(D) 4x + 8 = x -13

( ) - 7
( ) 21
( ) - 1
( ) 4
( ) 2

Answer 1

(A) x + 5 = 7
x=7-5=2

(B) 3x + 8 = 5
3x=5-8
x=-3/3=-1

(C) 2 + 5 = - x + 17
7=-x+17
x=17-7=10

(D) 4x + 8 = x -13
4x-x=-13-8
3x=-21
x=-21/3=-7