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Maths Exercices

Does x satisfy the equation?

A number is a solution to an equation if plugging it in results in a true statement.

Is v = 5 a solution to the equation ?

yes

no

 

Solution:

Plug v = 5 into the equation and simplify.

 
?
=
 
1 Plug in v = 5

1
 
?
=
 
1 Divide

Yes,  1 = 1 .

So, v = 5 is a solution to the equation .

Is m=1 a solution of the equation m-3=7?

A number is a solution to an equation if plugging it in results in a true statement.

Plug m=1 into the equation and simplify.

m-3=7

 


Plug in m=1

Add

, so, m=1 is not a solution to the equation m-3=7.


Is d = 8 a solution to the equation 10 = 2 + d ?

A. yes
B. no