Hello from MrBillDoesMath!
Answer:
x = 3
Discussion:
Remark: if Tito solved the equation why didn't he tell you what the solution was ? ); Guess I'll have to do it myself....
2(3x+5) = 22 + 5x - 3x => 2(3x+5) = 6x + 10 and 5x-3x = 2x
6x + 10 = 22 + 2x => subtract 2x for both sides
6x - 2x + 10 = 22 => subtract 10 from both sides
4x = 22-10 = 12 => divide both sides by 4
x = 12/4 =3
Thank you,
MrB
He can download at most 16 songs to leave $13 for himself to spend.
Use the equation $25-$0.75(x)=$13
It is not having a definite property it is a way commonly used with algebraic expressions
26 = 8 + x (here, we put x instead of the number we don't know)
you can take 8 to the other side with 26 but it will be minus instead of plus
26 - 8 = ×
18 = x
Answer:
Its a
Step-by-step explanation:
Answer:
The model swing should be <u>2.75 cm</u> high.
Step-by-step explanation:
Given:
A 168-cm tall person is 2 cm in Ming’s model.
If the actual swing is 231 cm high.
Now, to find how high should his model swing be.
Let the model swing be 
So, 168 cm tall person is equivalent to 2 cm.
Thus, 231 cm actual swing is equivalent to 
model swing.
Now, we get the height of the swing in the model by using cross multiplication method:
<em>By cross multiplication:</em>
⇒ 
<em>Dividing both sides by 168 we get:</em>
⇒ 
Therefore, the model swing should be 2.75 cm high.
