Texas Pre-Algebra, 2007
 SELECT PAGE NO. SELECT PROBLEM NO. FOR THE PAGE

 PAGE: 139 SET: Exercises PROBLEM: 1
Please look in your text book for this problem Statement

The equation is x + 14 = 25.

Apply subtraction property of equality: Subtract 14 from each side.

x + 14 14 = 25 14

x + 0= 25 14                    (Apply additive inverse property: 1414 = 0)

x = 25 14                         (Apply additive identity property: x + 0 = x)

x = 11                                   (Subtract: 2514 = 11)

Check:

To check the solution, substitute = 11 in original equation.

x + 14 = 25 11 + 14 = 15

25 = 25                               (Add: 11 + 14 = 25)

The statement is true.

Graph the solution on number line.

• First draw a number line.
• Mark a dot at 11 on  the number line.

The value of x = 11.

TESTIMONIALS
 "I want to tell you that our students did well on the math exam and showed a marked improvement that, in my estimation, reflected the professional development the faculty received from you. THANK YOU!!!" June Barnett "Your site is amazing! It helped me get through Algebra." Charles "My daughter uses it to supplement her Algebra 1 school work. She finds it very helpful." Dan Pease
 Tweets by @mathskeydotcom

QUESTIONS? LET US HELP.
 Simply chose a support option JOIN US ON:
mathskey.com is not affiliated with any Publisher, Book cover, Title, Author names appear for reference only