1) 2x-1 or x=1/2
2) 5a-16 or a=16/5
I believe the answer is C.
10.5 and 8.4 ......................,,,,,
Step-by-step explanation:
I'm sorry if my terminology isn't correct because I've learnt it slightly differently, but what I'm assuming is this:
For A, you can rewrite the integers as 28-15+22 as a + and a - next to each other result in a subtraction.
For B, you simply do 15+22 is 37 and 28-37 is -9 due to BIDMAS (or PEDMAS if you're American).
