Write the equation2(x + 3 )= 2x + 6 as a system of equations

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The bolo cavern outside of vandalia is 421 ft below sea level. a little more than75 miles away. mt owens is 7295 feet above sea level. what is the difference in elevation between the bolo cavern and mt owens?

There are a total of 75 students in the robotics club and science club. the science club has 9 more students than the robotics club. how many students are in the science club?

Solve the equation for x by graphing.2^x – 4 = -4^x + 4