Question

19. 2=5(5z-2)-9(3z-2)

Answer 1

Answer:

Step-by-step explanation:

2 = 5(5z - 2) - 9(3z - 2)

2 = 5*5z - 5*2 - 9 * 3z - 9 *(-2)

2 = 25z - 10 - 27z + 18

25z - 27z  + 18 - 10 = 2

25z - 27z = 2 + 10 - 18

-2z = -6

z = -6/-2

z = 3

Answer 2

Answer:

$z = 3$

Step-by-step explanation:

Simplify,

$2 = 5(5z - 2) - 9(3z - 2) \\ 2 = (5)(5z) + (5)( - 2) + ( - 9)(3z) + ( - 9)( - 2) \\ 2 = 25z + ( - 10) + ( - 27z) + 18 \\ 2 = 25z + ( - 27z) + ( - 10 + 18)$

Combine like terms,

$2 = ( - 2z) + 8$

Flip the equation,

$- 2z + 8 = 2$

Subsract 8 by both sides

$- 2z + 8( - 8) = 2( - 8) \\ - 2z = - 6$

Divide both sides by - 2,

$- 2z \div - 2 = - 6 \div - 2 \\ z = 3$

Hope this will help you :))

Brainliest would be appreciated :))