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?

Answer 1

see a solution process below;

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..
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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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