Answer:
7x
Step-by-step explanation:
Assuming your expression is :
Then we simplify as follows
since 
since 
since 
Answer:
x = 3
y = -2
Step-by-step explanation:
x + 2y = -1
2x – 3y =12
Using substitution means that in one equation you solve for a variable. In this case, the first equation would be easier to solve for x since there are no coefficients.
x = -2y - 1
Now, we plug in the value of x into the second equation, and solve for y.
2 (-2y - 1) - 3y = 12
-4y - 2 - 3y = 12
-7y - 2 = 12
-7y = 14
y = -2
Since we have a numerical value of y, we can use it to solve for x by plugging it into one of the original equations.
x + 2(-2) = -1
x - 4 = - 1
x = 3
If you'd like to check the answer, plug in both values you got to the original equations!
I hope this helps!
Let <em>x</em> equal the lowest of the 3 consecutive odd integers:
(x) + (x + 2) + (x + 4) = 75
Combine like terms:
3x + 6 = 75
-6 -6
3x = 69
/3 /3
<u><em>x = 23</em></u>
The lowest integer is 23. The 3 integers, therefore, are 23, 25, and 27.
Hope this helps!
<em>~ArchimedesEleven</em>
Answer:
-3-4x
Step-by-step explanation:
Let's find the value of x :
According to given picture, the angles (x + 75)° and (x + 125)° forms Co interior angle pair.
so,
hence, value of x = -10°
