Answer:
first one
Step-by-step explanation:
a + b = c
subtract a from both sides
b = c - a
or
c - a = b
Answer:
Short personal messages
Step-by-step explanation:
Multiply equation II by 2 and then add up the equations.
Answer:
19
Step-by-step explanation
Let the sum of n terms of A.P. = Sn
5m/s
Divide it by the unit. It’s basic simply if