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.

Dashboard

MH

McGraw Hill Glencoe Algebra 2, 2012 View details

1. Expressions and Formulas

Finish the assignment

Continue to next subchapter

Exercise 4 Page 7

Substitute - 2 for a, 3 for b, and 4.2 for c.

2.6

Practice makes perfect

To evaluate the given expression for a = -2, b = 3, and c= 4.2, we should substitute these values into the expression and simplify as much as possible.

5c-2[(b-a)+c]

SubstituteValues

Substitute values

5( 4.2)-2[( 3-( -2))+ 4.2)]

SubNeg

a-(- b)=a+b

5(4.2)-2[3+2+4.2]

AddTerms

Add terms

5(4.2)-2[9.2]

Multiply

21-18.4