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Use substitution to solve the system 5r+2w=68, r=3w
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2 votes
Use substitution to solve the system 5r+2w=68, r=3w

User Chandra Eskay
by
8.6k points

2 Answers

2 votes

Answer: w=4

Explanation:

1). 5(3w)+2w=68

2). 15w+2w=68

3). 17w=68

4). 17w/17=68/17

5). w=4

User PJW
by
8.1k points
5 votes

Answer:

4

Explanation:

  1. 5r+2w=68
  2. 5(3w)+2w=68
  3. 15w+2w=68
  4. 17w=68
  5. w=68/17
  6. w=4
User Mohammad Mirshahbazi
by
8.6k points
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