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9.2 Solving Linear Systems by Substitution

9.2 Solving Linear Systems by Substitution. Warm-up: S tate whether the given ordered pair is a solution to the system. 1. 2. 3. 3x + y = 5 2x - y = 10. 2x + 6y = 15 x = 2y. x + 2y = 4 -x + y = -7. 3x - y = 5 2x + y = 0. -2a + b = 7  2m + 5n = 14

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9.2 Solving Linear Systems by Substitution

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  1. 9.2 Solving Linear Systems by Substitution Warm-up: State whether the given ordered pair is a solution to the system. 1. 2. 3.

  2. 3x + y = 5 2x - y = 10

  3. 2x + 6y = 15 x = 2y

  4. x + 2y = 4 -x + y = -7

  5. 3x - y = 5 2x + y = 0

  6. -2a + b = 7  2m + 5n = 14 3a + b = -8 2m - 3n = 6

  7. A quilt maker sews both large and 
small quilts. A large quilt requires 8 
yards of fabric and a small quilt 
requires 3 yards. How many of each 
size can she make if she uses a total 
of 90 yards of fabric to make 15 
quilts?

  8. Tickets for the school play are $5 in 
advance and $8 at the door. 55 tickets 
were sold with sales totaling $320. 
How many tickets were sold in 
advance and how many were sold at 
the door?

  9. Homework Pg. 419 Written Exercises #1 - 17 odd Challenge Problems: #2 - 12 even

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