Answer: 2-4h
Step-by-step explanation: les do 3(2-0.9h) first. to do this, multiply each term in the bracket by 3.
3 x 2 = 6
3 x -0.9h = -2.7h
now we have 6 - 2.7h + -1.3h -4.
collect like terms
-2.7h + -1.3h = -4h ad 6-4 = 2
final answer is 2-4h
