Part A

Solve - np - 90 < 30 for n. Show your work.

Part B

Solve 5m - 3h = 45 for h. Show your work.

-np - 90 < 30

+ 90 + 90 * cancel - 90, add 90 to both sides

-np < 120

:p : p * cancel p, divide both sides by p

-n < 120/p

: - 1 : - 1 * cancel negative sign of n, divide both sides by - 1

n < - 120/p

5m - 3h = 45 : find value of h.

5m - 3h = 45

-5m - 5m * cancel 5m by subtracting it from both sides

-3h = 45 - 5m

: - 3 : - 3 : - 3 * cancel - 3 by dividing it from both sides

h = - 15 + 5m