Question

Resolver:
 (3x + 2) – ( - x – 1) = (2x + 4) + (x +3)
 4x + 9 = 2x – 3 + x
 3( x + 2) – 5 ( 4 – 7x) = 8

Answer 1

(3x + 2) – ( - x – 1) = (2x + 4) + (x +3)
3x+ 2 + x +1 = 2x+4 +x+3
3x+x-2x-x = 4+3-2-1
x= 4

4x + 9 = 2x – 3 + x
4x-2x-x= -3-9
x= -12

3( x + 2) – 5 ( 4 – 7x) = 8
3 x+ 6 - 20 + 35x= 8
3x+ 35x= 8-6+20
38x= 22
x=22/38
x= 11/19