Question

qual o resultado 5 (3 - x) + 2 (x+1) = -x + 5​

Answer 1

Resposta:

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

15-5x+2x+2=-x+5

-3x+17=-x+5

-3x+x=5-17

-2x=-12 × (-1)

2x=12

x=12/2

x=6

Answer 2

Respostas

5*(3-x)+2(x+2)=-x+5

15-5x + 2x+4=-x+5

-5x+x+2x= -15-4+5

-2x= -19+5

x= -14/-2

x= 7

S= {7}