<u>Answer:</u>
The correct answer option is 'then'.
<u>Step-by-step explanation:</u>
The "to prove" part of the information is the 'then' of the "if-then" statement.
For example, we have this problem:
If 
, then find the value of y.
Here in this problem, we are asked that 'if' the value of x is true then prove it by substituting in the value.
Answer:
ANSWER: Option B.
Step-by-step explanation:
Hey there!
The equation is;
Now, Take 'x' to right side and '-7' to left side.
Simplify them to get answer.
Therefore the value of x is 2.
<em><u>Hope</u></em><em><u> </u></em><em><u>it helps</u></em><em><u>.</u></em><em><u>.</u></em>
Answer:
n = 185/9
Step-by-step explanation:
(6n-25) + (3n + 20) = 180
Combine like terms
9n -5 = 180
Add 5 to each side
9n - 5 +5 = 180+5
9n = 185
Divide each side by 9
9n/9 = 185/9
n = 185/9
Answer:
40
Step-by-step explanation:
Subtracting a number k from 300 looks like this 300-k.
Adding a number k to 220 looks like this 220+k.
They are saying for some number k that we have 300-k and 220+k is the same value.
That is, 300-k=220+k.
This is the equation we are going to solve for your number.
300-k=220+k
Add k on both sides:
300=220+2k
Subtract 220 on both sides;
80=2k
Divide both sides by 2:
40=k
k=40.
So the number is 40.
Check: 300-40=260 while 220+40=260.
Answer:
Step-by-step explanation:
Let the number = x
<u><em>2x - (x + 5) = 3 </em></u> Answer
Now Let's solve it.
2x - x - 5 = 3
x - 5 = 3
x = 8
Check
2*8 - (8 + 5)
16 - 13
3
which is exactly what the right hand sign is.
