SOLUTION: A can of house paint cost 4 dollars more than a can of wall paint. If 7 cans of house paint cost the same as 9 cans of wall paint, find the price of each paint

Question 1012471: A can of house paint cost 4 dollars more than a can of wall paint. If 7 cans of house paint cost the same as 9 cans of wall paint, find the price of each paint
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = the price of a can of house paint
Let = the price of a can of wall paint
-------------------
(1)
(2)
-----------------
Substitute (1) into (2)
(2)
(2)
(2)
(2)
and
(1)
(1)
(1)
The price of a can of house paint is $18
The price of a can of wall paint is $14
-----------------
check:
(2)
(2)
(2)
OK
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