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Posted by on Monday, January 3, 2011 at 1:06pm.

Solve each of these systems using the substitution method. Make sure to check your answers !

2x + 3y = -4

x - 2y = 5
Question 1 answers
x = 1, y = -2
x = -1, y = 2
x = 1, y = 2
x = -2, y = -1

  • Math - , Tuesday, January 4, 2011 at 10:03am

    x = 5 + 2y

    2x + 3y = -4

    Substitute 5 + 2y for x in second equation and solve for y. Insert that value into the first equation and solve for x. Check by inserting both values into the second equation.

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