karleeahomer karleeahomer

19-01-2018
Mathematics

contestada

Solve the system of equations using the substitution method. {y=−3x+7 x=−2y−16

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dannielle dannielle

19-01-2018

y= -3x +7

x= -2 *(-3x+7) -16
x= -2* (-3x) -2*7-16
x= 6x-14-16
x=6x-30
6x-x=30
5x=30
x=30:5
x=6

y=-3*6+7
y=-18+7
y= -11

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linnikmia linnikmia

22-02-2019

Answer:

x=6 and y=-11

Step-by-step explanation:

i took the test and this was correct

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