Question

Which of the following is(are) the solution(s) to 15x+21=8?

a) x = -2, 6/5
b) x = 2
c) x = 2, -6/5
d) x = 6/5

Answer 1

The solution to the equation 15x + 21 = 8 is x = -13/15.

Step-by-step explanation:

To find the solution(s) to the equation 15x + 21 = 8, we will solve for x.

Subtract 21 from both sides:

15x = 8 - 21

15x = -13

Divide both sides by 15:

x = -13/15

Therefore, the correct solution to the equation is x = -13/15.

Answer 2

The solution to the linear equation 15x + 21 = 8 is x = -13/15. This is solved by first isolating the x term and then dividing both sides by the coefficient of x.

Step-by-step explanation:

The given equation is 15x + 21 = 8. To find the value of x, we need to solve for it. Subtract 21 from both sides of the equation to isolate the term with x:

15x + 21 - 21 = 8 - 21

15x = -13

Now, divide both sides of the equation by 15 to solve for x:

15x / 15 = -13 / 15

x = -13/15

No other solutions for x are possible given it is a linear equation, hence the only solution is x = -13/15

The original equation provided, x² +0.0211x -0.0211 = 0, is a quadratic equation and it could be solved using the quadratic formula. However, this is not related to the solution of the linear equation we were asked to solve.