Question 974544
Let {{{ a }}} = number of king size packs
Let {{{ b }}} = number of regular size packs
----------------
(1) {{{ a + b = 28 }}}
(2) {{{ 4a + 2b = 88 }}}
---------------------
(2) {{{ 2a + b = 44 }}}
Subtract (1) from (2)
(2) {{{ 2a + b = 44 }}}
(1) {{{ -a - b = -28 }}}
-------------------
{{{ a = 16 }}}
and
(1) {{{ 16 + b = 28 }}}
(1) {{{ b = 12 }}}
There are 16 king size packs
There are 12 regular size packs
-----------------------------
check:
(2) {{{ 2a + b = 44 }}}
(2) {{{ 2*16 + 12 = 44 }}}
(2) {{{ 32 + 12 = 44 }}}
(2) {{{ 44 = 44 }}}
OK