Question

Solve each system using substitution. Check your answer.
x+y=8
y=3x

Answer 1

x = 2

y = 6

Explanation:

x + y = 8

x + (3x) = 8

4x = 8

4x ÷ 4 = 8 ÷ 4

x = 2

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y = 3x

y = 3(2)

y = 6

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x + y = 8

(2) + (6) = 8

8 = 8