Question

Solve the following system of equations using substitution method.

x + y = 4

4x + 8y = 20

Answer 1

Explanation:

x+y=4

x=4-y

4x+8y=20

4(4-y)=20

16-4y=20

-4y=20-16

y=4/-4

y=-1

x+y=4

x+(-1)=4

x=4+1

x=5

hope this helps you

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