Hey there!!
Equation given :
... 78 = -2 ( m + 3 ) + m
... 78 = -2m - 6 + m
... 78 = -m - 6
... 78 + 6 = -m
... 84 = -m
... m = -84
Hope my answer helps!!
Hello there!
The answer should be the third option C.
[tex]78 = -2(m + 3) + m[/tex]
First you had to simplify from both sides of the equations.
[tex]78=-2(m+3)+m[/tex]
[tex]78=(-2)(m)+(-2)(3)+m[/tex]
[tex]78=-2m+-6+m[/tex]
[tex]78=(-2m+m)+(-6)[/tex]
[tex]78=-m+-6[/tex]
[tex]78=-m-6[/tex]
Then you can flip by the equation.
[tex]-m-6=78[/tex]
Add by 6 from both sides.
[tex]-m-6+6=78+6[/tex]
[tex]-m=84[/tex]
Divide by -1 from both sides.
[tex]\frac{-m}{-1}=\frac{84}{-1}[/tex]
Simplify should be the correct answer.
[tex]m=-84[/tex]
Hope this helps!
Thank you for posting your question at here on Brainly.
Have a great day!
-Charlie
