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17 votes
17 votes
Modeling an Equation

Use the algebra tiles to model the equation
2x + 4 = 3x + (−1). Then complete the sentences.

To model 2x + 4, you need:


positive x-tiles to represent 2x.

positive unit tiles to represent 4.

To model 3x + (−1) you’ll need:

3
x-tiles to represent 3x.
1
unit tile to represent –1.

User AminRostami
by
2.8k points

2 Answers

14 votes
14 votes

Answer:

2 4

✔ positive

✔ negative

Explanation:

User StefanTo
by
2.6k points
11 votes
11 votes

Yes all your used tiles are correct.

Let's solve the equation too

  • 2x+4=3x+(-1)
  • 2x+4=3x-1
  • 4+1=3x-2x
  • x=5
User Matthew Daumen
by
2.5k points