SOLVING SYSTEMS OF EQUATIONS BY SUBSTITUTION PRACTICE PROBLEMS.

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SOLVING SYSTEMS OF EQUATIONS BY SUBSTITUTION PRACTICE PROBLEMS

PAGE 340 WORK PROBLEMS 1, 6, and 7. We will check shortly.

PAGE 340 WORK PROBLEMS 9, 13, and 25. We will check shortly.

LITTLE DOG Solve the following systems of equations: 2x + 4y + 3z = 14 y + 3z = 11 z = 4

ANSWER Solve the following systems of equations: 2x + 4y + 3z = 14 y + 3z = 11 z = 4(3, -1, 4)

BIG DOG Solve the following systems of equations: 2x + 3y + 2z = 18 -4y + y – z = 5 2z = -10

ANSWER Solve the following systems of equations: 2x + 3y + 2z = 18 -4y + y – z = 5 2z = -10(2, 8, -5)