Question

Will give brainliest for the first and the correct answer.

Answer 1

Answer:

x=4

Step-by-step explanation:

Cross multiply both sides to get 2(3x)=(x+20). Simplify to get 6x=x+20. Subtract x from both sides to get 5x=20, and divide both sides by 5 to get 4 as the value of x. The value of x will be your answer.

Answer 2

Answer:

A.) x = 4

Step-by-step explanation:

If $\frac {(x+20)} {2} = 3x$, then we plugin values:

$\frac {(4+20)} {2} = 12$  which is equal to 3(4).