Answer:
x = 10
Step-by-step explanation:
1) Subtract x from both sides.
4x − x = 30
2) Simplify 4−x to 3x
3x = 30
3) Divide both sides by 3
x = 
4) Simplify
to 10
x = 10
Answer:
In D
Step-by-step explanation:
in d you can place the lamp there
If you copy and paste this question on google, you get the answer. But sadly i can't copy and paste on here because it's plagiarism!<span />
Answer:
2(x+3)
Hope u get it correct!!!
Step-by-step explanation: