Question

como resolver essa aí 6(x-5)-2 (4x+2)≥ 80

Answer 1

6(x - 5 ) - 2( 4x + 2 ) > 80

6x - 30 -8x - 4 > 80

6x - 8x > 80 +30 + 4

-2x > 114  *( -1)

2x < 114

x < 114
    ---------
       2

x < 57

Answer 2

6x - 30 -8x - 4 ≥ 80

6x - 8x ≥ 80 + 30 + 4

- 2x ≥ 114 . (-1)

2x ≤ -114

x ≤ 114/2

x ≤ -57

S = {....., - 61, - 60, - 59, - 58, - 57}