4x+20 = 20 + 4x solve for x

7(x - 2) = 3(x + 4) solve the following equation. then enter your answer in the space provided using mixed number format.

He mass of a single atom of carbon can be found by dividing the atomic mass (12.01 g) by 6.022 x 10^23. which is the mass of a single carbon atom, correctly written in scientific notation with the correct number of significant figures?

2. explain in words how you plot the point (4, −2) in a rectangular coordinate system.