x + 0.60(15) = 0.80(x + 15)

Question

Responses
A 99
B 1212
C 1313
D 15

Answer 1

To solve this equation, we can start by distributing the 0.60 and 0.80 to the terms inside the parentheses:

x + (0.60)(15) = (0.80)(x + 15)

Simplifying this equation gives:

x + 9 = 0.80x + 12

Next, we can subtract x from both sides of the equation to isolate the x term:

9 = 0.80x - x + 12

Simplifying further gives:

9 = -0.20x + 12

Subtracting 12 from both sides:

-3 = -0.20x

Finally, we can divide both sides by -0.20 to solve for x:

x = -3/-0.20 = 15

So, the value of x is 15.

The answer is D) 15.