Answer :
Answer:
x = - 4
Step-by-step explanation:
-4x - 7 - 3x + 4 = 25
- 7x = 25 + 7 - 4
- 7x = 28
7x = - 28
x = - 28 : 7
x = - 4
You need to isolate the variable "x" in the equation:
-4x - 7 - 3x + 4 = 25 Combine like terms (-4x - 3x and -7 + 4)
-7x - 3 = 25 Add 3 on both sides
-7x - 3 + 3 = 25 + 3
-7x = 28 Divide -7 on both sides to get "x" by itself
[tex]\frac{-7x}{-7} =\frac{28}{-7}[/tex]
x = -4