Question

RESOLVA AS EQUACOES DO 1 GRAU ABAIXO :
A - -3X+12= -2X+7
B - -52+13-4X= -6X - X+13

Answer 1

-3X + 12= -2X + 7
-3X + 2X= 7 -12
-X= -5 x (-1)
X = 5

-52 +13 -4X= -6X -X +13
-39 -4X= -7X +13
-4X +7X=13 +39
3X = 52
X = 17 (Sobra 1)