Study the equation below 25 = 2x + 3

which equation has the same solution?

a. 28 = 2x

b. 22=2x

c. 50 = x + 3

d. 25/2 = x+3

Let's solve 'em all!

Original Equation:

25 = 2x + 3

-3 - 3

22 = 2x

/2 / 2

11 = x (So now we are looking for an equation that has the solution: 11)

A.

28 = 2x

/2 / 2

14 = x

B

22 = 2x

/2 / 2

11 = x

C

50 = x + 3

-3 - 3

47 = x

D

25/2 = x + 3

12.5 = x + 3

-3 - 3

9.5 = x

Thus, the answer is B since both 25 = 2x + 3 and 22 = 2x both are equivalent to 11.