Question

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

Answer 1

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.