Question

Equações de 1 grau:
A ) -10x +2= -8
B ) -10x +2= -8
C ) -9x -7= -11

alguem me ajuda?? é urgente

Answer 1

A ) -10x +2= -8
-10x = -8 - 2
-10x = -10
x = -10/-10
x= 1

B ) -10x +2= -8
-10x = -8 - 2
-10x = -10
x = -10/-10
x= 1

C ) -9x -7= -11
-9x = -11 + 7
-9x = -4
x= -4/-9
x = 4/9