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notsponge [240]
3 years ago
14

Solve the system of equations by substitution. Show your work in the sketch and write your answer as an ordered pair.

Mathematics
1 answer:
Ede4ka [16]3 years ago
3 0

Let's solve your system by substitution.

−3x+y=−2;y=4x

Rewrite equations:

y=4x;−3x+y=−2

Step: Solvey=4xfor y:

y=4x

Step: Substitute4xforyin−3x+y=−2:

−3x+y=−2

−3x+4x=−2

x=−2(Simplify both sides of the equation)

Step: Substitute−2forxiny=4x:

y=4x

y=(4)(−2)

y=−8(Simplify both sides of the equation)

Answer:

x=−2 and y=−8

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