Answer:

Step-by-step explanation:
3 x 4 - 5 = 7
Answer:
1/2 times 1/3
Step-by-step explanation:
Answer:
28-4x
Step-by-step explanation:
Step 1: Open most inner bracket and simplify
=18-2(x+x-5)
=18-2(2x-5)
Step 2: Expand brackets by multiplying 2 in and simplify
=18-2(2x)-2(-5)
=18-4x+10
=28-4x
Therefore the answer is 28-4x
Answer: B. 12
Step-by-step explanation: Cause we have to subtract because let see 48+12=60 so we have to subtract each numbers with 12.