S=a+b+c
solve for b
Completely forgot how to do this

b = S - a - c

Step-by-step explanation:

You just move every other term except for the one you're solving for to the other side, using the opposite operations

S = a + b + c

S - a = b + c

S - a - c = b

b = S - a - c

OR

S = a + b + c

-b + S = a + c

-b = -S + a + c

b = S - a - c (we flipped all signs here to make b positive, like it's supposed to be. The justification for this is multiplying both sides by -1)

just do 5.2 + 2 ( 7.2) and 1/3 x 3 (.9) and youv'e got your equation. 0.9( 9/10) + 7.2 ^2 = 16.4 hope i could !

step-by-step explanation:

28

step-by-step explanation:

because that's the answer