Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
1 3x a 4 5 2xx2a7134 x 11 2 If you had this equation, how would you move the 7 3x 3 x 7 to the other side of the equation? 3x 3 x 7 You would subtract it . . . . . . wouldn’t you? 3x 3 x 7 7 7 This equation is probably different from other equations you have solved. 3x 3 x 7 What makes it different? It is different because it has an x on each side. 3x 3 x 7 How would you move the x from the right side to the left? 3x 3 x 7 You would move the x exactly the same way you would move the 7. 3x 3 x 7 You would subtract it . . . . . . wouldn’t you? 3x 3 x 7 x x Now when you simplify. . . 3x x ?2 x 3x 3 x 7 x x Now when you simplify. . . x x ?0 3x 3 x 7 x x . . . the equation becomes the type of equation 3x 3 x 7 x x . . . the equation becomes the type of equation 2x 3 7 3x 3 x 7 that you already know how to solve. 2x 3 7 3 3 that you already know how to solve. 2x 4 2 2 that you already know how to solve. x2 If you want to solve equations correctly (Don’t (andget you you?) do) you will in the habit of checking solutions. Checking the solution: x 2? 3x 3 x 7 32 3 2 7 ? 6 3 9? Try this one: 2 x 10 9 x 11 9x 9x 7 x 10 11 10 10 7 x 21 7 7 Try this one: x 3? 2 x 10 9 x 11 23 10 93 11? 6 10 27 11? 16 16 ? You Okay—here’s say you wantone onemore. more? 4x 7 2x 1 Did If you youdid, check youyou know answer? the solution is x 4.