billingsm2005 billingsm2005

20-02-2019
Mathematics

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{y=2x+3
{y=-x-9 solve each system of equations by substitution

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Ammimochi Ammimochi

21-02-2019

Substitute y = 2x + 3 into y = -x - 9

2x + 3 = -x - 9

Solve for x in 2x + 3 = - - 9

x = -4

Substitute x = -4 into y = 2x + 3

y = -5

Therefore,

x = -4

y = -5

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