Tanisha has 7 less than 4 times as many toy cars as Fernado. If Tanisha has 9 cars, How do you write and solve an equation to find how many toy cars Fernando has?

1 Answer
Mar 2, 2018

Answer:

see a solution process below;

Explanation:

We can say let Fernado's toy cars be represented by #x#

Tanisha has #7# less than #4# times as many toys cars as Fernado..

Since Fernado's toy cars # = x#

Hence;

Tanisha toy cars #= 4x - 7#

So since Tanisha has 9 toy car's

Therefore;

#rArr 4x - 7 = 9#

#4x - 7 = 9#

#4x - 7 + 7 = 9 + 7 -> "adding 7 to both sides"#

#4x = 16#

#(4x)/4 = 16/4 -> "dividing both sides by 4"#

#(cancel4x)/cancel4 = 16/4#

#x = 16/4#

#x = 4#

Since, Fernado's toy cars # rArr x = 4#

Hence, Fernado's has #4# toy cars..