Question

Determine o valor da incognita 3-7(1-2x)=5-(x+9)

Answer 1

Boa Tarde!!

3-7(1-2x)=5-(x+9)

3-7*1-7(-2x)=5-(x+9)

3-7+14x=5-(x+9)

-4+14x+(x+9)=5

14x+x=5-9+4

15x=0

x=0/15

x=0

Testando...

3-7(1-2*0)=5-(0+9)

3-7=5-9

-4=-4