Step-by-step explanation:
i)
2(x+2)=7
2x+4=7
2x=7-4
2x=3
x=3/2
ii)3x + y =8 , y=x
3x + x = 8
4x = 8
x = 2
Answer:
x≥4
Step-by-step explanation:
We want to solve for x in

Let us add 3 to both sides:

We simplify to get:

Divide through by 2 to get:

Answer:
981,518
Step-by-step explanation:
Have a nice day :)
Do you mean how you can tell between an area formula and a volume formula? Well usually like on a reference sheet it says the shape and the letter a or v, a representing area and v representing volume. I hope this helps, if it doesn't please tell me in the comment section
Answer:
the correct answer is A. Because it shows the equal qualifient of the answer