Question

1-(2x-3)+(x+5)=2 equaçoes

Answer 1

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

S = { 7 }