Answer: 7x + 5
Step-by-step explanation: You can't mix variables and non-variables so
8x - x = 7x and 15 - 10 = 5. Brainliest please?
Answer: 170180.59
Step-by-step explanation:
Hello!
Explanation:
First, you had to do is switch sides of an equation.

Then you divide by -12 from both sides of an equation.

Simplify.


Next, subtract by 5 from both sides of an equation.

Simplify.

Answer: → 
*The answer must have a negative sign.*
Hope this helps!
Answer:
x=-9, y=-6. (-9, -6).
Step-by-step explanation:
4x-5y=-6
-6x+7y=12
----------------
6(4x-5y)=6(-6)
4(-6x+7y)=4(12)
-----------------------
24x-30y=-36
-24x+28y=48
-----------------------
-2y=12
y=12/-2
y=-6
4x-5(-6)=-6
4x+30=-6
4x=-6-30
4x=-36
x=-36/4
x=-9
Answer:

Step-by-step explanation:

This is a perfect square.
So the final expression is 