Is x = 4 a solution of the equation 5x -1 = 19 ?
To determine if x = 4 is a solution of the equation 5x - 1 = 19, substitute x = 4 into the equation and see if it holds true:
5(4) - 1 = 19
20 - 1 = 19
19 = 19
Since both sides of the equation are equal when x = 4, we can conclude that x = 4 is indeed a solution of the equation.
To determine if x = 4 is a solution of the equation 5x - 1 = 19, we substitute the value of x into the equation and see if it satisfies the equation.
Step 1: Substitute the value of x = 4 into the equation:
5(4) - 1 = 19
Step 2: Simplify:
20 - 1 = 19
Step 3: Evaluate:
19 = 19
Since both sides of the equation are equal, x = 4 is indeed a solution of the equation 5x - 1 = 19.