Question

What is the solution to this equation?

2x + 3 (x - 10) = 45

A. x = 15

B. x = 3

C. x = 7

D. x = 11

ANSWER: A (x = 15)

Answer 1

The value of x is 15

Explanation:

2x + 3(x - 10) = 45

2x + 3x - 30 = 45

5x - 30 = 45

Now, Add 30 both sides we get,

5x - 30 + 30 = 45 + 30

5x = 75

Now, Divide 5 from both sides we get,

5x/5 = 75/5

x = 15

Thus, The value of x is 15

Hence, Option A is correct

-TheUnknownScientist