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.

Envision Math 2.0: Grade 7, Volume 1

EM

Envision Math 2.0: Grade 7, Volume 1 View details

Get Ready!

Continue to next subchapter

Exercise 11 Page 187

Substitute - 4 for a and 3 for b in the expression.

1

Practice makes perfect

To evaluate the given expression for a = - 4 and b = 3, we should substitute these values into the expression and simplify as much as possible.

2a + 3b

a= - 4, b= 3

2( - 4) + 3( 3)

a(- b)=- a * b

- 8 + 3(3)

Multiply

- 8 + 9

Add terms

1

Subchapter links

Review What You Know! p.187