Pls answer the question on the top and pls send the answer as soon as possible please and thank you.

Which is the most efficient first step to solve x in the equation 3.7x - 18 = -4.3x -34 a. add 3.7x to both sides of the equation. b. add 4.3x to both sides of the equation. c. subtract 18 from both sides of the equation. d. subtract 34 from both sides of the equation.

Show your workcan a right triangle have this sides? *how to prove it without using the pythagorean theorema*

Complete the steps to find 4.830 ÷ 5