The sum of 15 + 6 times a number t is 81 what is the number

Equation= 15+6t = 81
so you need to use the inverse operation.
it would be=
15+ 6t= 81
= 81 - 15= 6t
= 66= 6t
= t= 66/6
t = 11
to verify
15+6t= 81
t= 11
15+6 x 11= 81
= 15+ 66= 81

A. p = 2(l + w)p/2 - l = ww = p/2 - l b. while isolating the variable w in the equation, i first divided both sides by 2 and then i subtracted l from both sides. i hope this .

How many is in each case if there is 12 in each case it would be 40