202 alg - Name u2002 u2002 u2002 u2002 u2002u2002...

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Name: Date: School: Facilitator: 2.02 Systems of Two Equations Algebraically Solve each system by substitution. You must show your work to receive credit! 1. y = 2 x 1 6 x 3y = 7 Solution: no solution Work: y=2x-1 6x-3(2x-1)=7 6x-6x+3=7 3=7 2. 2 x + y = 9 7 x + 8 y = 20 Solution: (4,1) Work: -7x+8(-2x+9)+-20 -7x+8(-2x+9)+-20 -23x=-92 x=4 y=-2(4)+9 y=1 Solve each system by elimination. You must show your work to receive credit!

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