A) (3x+30)+(x-5)+35=180
4x+60=180
4x=120
x=30
b) A=x-5
A=25
B=3x+30
B=120
]Answer:

Step-by-step explanation:
Substitute the value of the variable into the equation and simplify.

Solve it out.
Multiply / divide / add / subtract everything out.
It would be called a mess up on ur paper
Answer:
D is correct Answer. Parallel line on graph means infinity many solutions.