Question

2x + 7 = 25
A) x=7
B) x=5
C) x=6
D) x=9

Answer 1

`\huge\boxed{\bf\:x = 9}`

Explanation:

`2x + 7 = 25`

Bring 7 to the left hand side of the equation next to 25 so that the constant terms can be subtracted.

`2x = 25 - 7\\2x = 18`

Bring 2 to the left hand side of the equation & divide 18 by 2.

`x = (18)/(2)\\\boxed{\bf\:x = 9}`

`\rule{150pt}{2pt}`

Answer 2

D. X=9

Explanation:

Isolate the term of x from one side of the equation.

2x+7=25

First, subtract by 7 from both sides.

2x+7-7=25-7

Solve.

Subtract the numbers from left to right.

25-7=18

2x=18

Divide by 2 from both sides.

2x/2=18/2

Solve.

Divide the numbers from left to right.

18/2=9

x=9

• The solution is x=9, which is our answer.

I hope this helps! Let me know if you have any questions.