body{margin:0;} noscript{z-index: 10000; position: fixed; display: block; height: 100%; width: 100%; background: #fff;} noscript .fa{font-size: 40px; display:block; color: #daa520;} noscript div{margin-top: 6%; padding-left: 20px; padding-right: 20px; text-align: center;} ! You must have JavaScript enabled to use this site.

McGraw Hill Glencoe Geometry, 2012

MH

McGraw Hill Glencoe Geometry, 2012 View details

6. Isosceles and Equilateral Triangles

Continue to next subchapter

Exercise 61 Page 293

What do you need to do to obtain n=56 from n-17=39?

Addition Property of Equality

Practice makes perfect

Let's examine the given statement and determine the property that justifies the statement. If n-17=39, then n=56.

In order to obtain n=56 from n-17=39, we add 17 to both sides of the equation. n-17 + 17=39 + 17 ⇒ n=56 Therefore, Addition Property justifies this statement. If a=b, then a + c=b + c.

Subchapter links

Check Your Understanding p.289

Practice and Problem Solving p.289-292

H.O.T. Problems p.292

Standardized Test Practice p.293

Spiral Review p.293

Skills Review p.293