30-01-2018
Mathematics

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Solve the system of linear equations by substitution

Solve the system of linear equations by substitution class=

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meredith48034 meredith48034

02-02-2018

x= 5y + 1

-2x + 9y = -1

-2(5y + 1) + 9y = -1

-10y - 2 + 9y = -1

-y - 2 = -1

-y = 1

y = -1

x + 5 = 1

x = -4

(-4, -1)

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