7.2 systems of equations substitution (no key)

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7.2 systems of equations substitution (no key)

  1. 1. Kuta Software - Infinite Algebra 1 Name___________________________________Solving Systems of Equations by Substitution Date________________ Period____Solve each system by substitution.1) y = 6 x − 11 2) 2 x − 3 y = −1 −2 x − 3 y = −7 y=x−13) y = −3 x + 5 4) −3 x − 3 y = 3 5 x − 4 y = −3 y = −5 x − 175) y = −2 6) y = 5 x − 7 4 x − 3 y = 18 −3 x − 2 y = −127) −4 x + y = 6 8) −7 x − 2 y = −13 −5 x − y = 21 x − 2 y = 119) −5 x + y = −2 10) −5 x + y = −3 −3 x + 6 y = −12 3 x − 8 y = 24 -1-
  2. 2. 11) x + 3 y = 1 12) −3 x − 8 y = 20 −3 x − 3 y = −15 −5 x + y = 1913) −3 x + 3 y = 4 14) −3 x + 3 y = 3 −x + y = 3 −5 x + y = 1315) 6 x + 6 y = −6 16) 2 x + y = 20 5 x + y = −13 6 x − 5 y = 1217) −3 x − 4 y = 2 18) −2 x + 6 y = 6 3 x + 3 y = −3 −7 x + 8 y = −519) −5 x − 8 y = 17 20) −2 x − y = −9 2 x − 7 y = −17 5 x − 2 y = 18 -2-

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