Linear equation

Linear equations are a type of math equation that look like a line when they are graphed. They are the most basic type of equations and are made up of expressions that look like "3x + 5 = y". In this equation, "3x" and "5" are called coefficients, and "y" is called the variable. The variable can take different values, like "10" or "25". The equation will still work, no matter what value the variable has. The solution to the equation is the value of the variable that makes the equation true. So, if we plug in "10" for the variable, then the equation becomes "3x + 5 = 10" and if we solve it, we end up with "x = 2.5". This means that the solution to the equation is "2.5", because "2.5" makes the equation true.