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Solving systems of equations (3 different methods) solve each system by substitution. 7) −7 x − 8 y = −23. You can select the method with which to solve the systems as well as the types of solutions. 1) −4 x − 2y = −12 4x + 8y = −24 2) 4x + 8y = 20 −4x + 2y = −30 3) x − y = 11 2x + y = 19 4) −6x + 5y = 1 6x + 4y = −10 5) −2x − 9y = −25 −4x − 9y = −23 6) 8x + y = −16 −3x + y = −5 7) −6x + 6y = 6 −6x + 3y = −12 8) 7x + 2y = 24 8x + 2y = 30 9) 5x + y = 9 10 x − 7y. 5 and 8 3) flying to kampala with a tailwind a plane averaged 158 km/h.

+ 3 + 6 = _____ = _____ = 4 = _____ −3. On the return trip the plane only 3) 14 x − 2 y = 46 −7 x + y = −23.

3) 14 X − 2 Y = 46 −7 X + Y = −23.

___________ systems of 3 variable equations. After performing elimination operations, the result is a contradiction. = _____ 10 8) − 14. 1) y = 6x − 11 −2x − 3y = −7 (2, 1) 2) 2x − 3y = −1 y = x − 1 (4, 3) 3) y = −3x + 5 5x − 4y = −3 (1, 2) 4) −3x − 3y = 3 y = −5x − 17 (−4, 3) 5) y = −2 4x − 3y = 18 (3, −2) 6) y = 5x − 7 −3x − 2y = −12.

Web In This Section We Use Elimination Of Variables To Solve Systems Of Equations In Three Variables.

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Web Solve Each System By Elimination.

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The Equation 2X 3Y 4Z 12 Is Similar In Form, And So It Is A Linear Equation In Three Variables.

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4 x + 4 y = 12. Web solve each system by elimination. 3) 14 x − 2 y = 46 −7 x + y = −23. 7) −7 x − 8 y = −23. (15 worksheets) practice our systems of equations worksheets to find the consistency and dependency of systems of linear equations, solving simultaneous equations and more.