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22-12-2021
Mathematics

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Solve the system of linear equations by substitution: (SHOW UR WORK)
y=-x
y=3x-4

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esauazraa2 esauazraa2

22-12-2021

Answer:

x=1

y=-1

Step-by-step explanation:

they have already isolated y in both equations

label both equations

y=-x............1

y=3x-4........2

sub 1 into 2

-x=3x-4

-x-3x=-4

-4x=-4

x=1........ 3

sub 3 into 1

y=-(1)

y=-1

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