Solving Linear Equations
... (a) To check that x = 4 is a solution we substitute the value for x and see if both sides of the equation are equal. Evaluating the left-hand side we find 3(4) − 2 which equals 10, the same as the right-hand side. So, x = 4 is a solution. We say that x = 4 satisfies the equation. (b) Substituting x ...
... (a) To check that x = 4 is a solution we substitute the value for x and see if both sides of the equation are equal. Evaluating the left-hand side we find 3(4) − 2 which equals 10, the same as the right-hand side. So, x = 4 is a solution. We say that x = 4 satisfies the equation. (b) Substituting x ...
