Answer: x=50
Step-by-step explanation:
To solve for x, x needs to be isolated. Meaning, the answer should be written as x=___.
[tex](3x+10)+(x-30)=180[/tex] [combine like terms]
[tex]4x-20=180[/tex] [add 20 to both sides]
[tex]4x=200[/tex] [divide both sides by 4]
[tex]x=50[/tex]
Therefore, x=50.
