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Envision Math 2.0: Grade 7, Volume 1

EM

Envision Math 2.0: Grade 7, Volume 1 View details

1. Write and Evaluate Algebraic Expressions

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Exercise 8 Page 193

Substitute 2 for x and 3 for y in the expression.

See solution.

Practice makes perfect

To evaluate the given expression for x = 2 and y = 3, we should substitute these values into the expression and simplify as much as possible.

10.2x+9.4y

x= 2, y= 3

10.2( 2)+9.4( 3)

Multiply

20.4+28.2

Add terms

48.6

Subchapter links

Do You Understand? p.192

Do You Know How? p.192

Practice & Problem Solving p.193-194

Assessment Practice p.194