Question

How do you solve 2c + 13 = 19 ?

Answer 1

Hint: The given equation is a linear equation in one variable, we can solve it by bringing all x to one side and all constant to another side. We know the value of 2c + 13 , then we can calculate 2c and then solve for c.

Complete step by step solution:
The given equation in the question is 2c + 13 = 19 which is a linear equation in one variable
Now we can bring all the c to LHS and all the constants to RHS, we can subtract 13 from LHS and RHS to do so.
Subtracting 13 from both LHS and RHS we get 2c = 6
Dividing both LHS and RHS by 2 we get c equal to 3
So the value of c = 3 is the solution of 2c + 13 = 19

Note: The equation given in the question was a linear equation in one variable, so one equation is enough to solve it. We can solve it by another method, we want to evaluate c which satisfies the equation 2c + 13 = 19 or 2c – 6 = 0, we can draw the graph of y = 2x – 6 and the x intercept will be the solution. In this case the straight line y = 2x -6 will intersect at ( 3 , 0).