1. 9x + 16 = 4x - 19

x = - 7

Step-by-step explanation:

solve

in order to solve this, make x the subject of formula:

9x + 16 = 4x - 19

9x + 16 - 4x = - 16

5x = - 19 - 16

5x = -35

x = - 35 / 5

x = - 7

x=-7

Step-by-step explanation:

9x + 16 = 4x - 19

Subtract 4x from each side

9x-4x + 16 = 4x-4x - 19

5x+16 = - 19

Subtract 16 from each side

5x+16 - 16 = - 19-16

5x = - 35

Divide each side by 5

5x/5 = - 35/5

x = - 7