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Solve by substitution (x-2y=-4 and x=2y-4

2 Answers

4 votes

Answer:

Explanation:

(x-2y=-4)

(x=2y-4)

(2x+y=-8)

-y+8=2x

x=4-.5

User Saloo
by
8.3k points
6 votes

Explanation:

x - 2y = -4

x = 2y - 4

2y - 4 - 2y = -4

2y - 2y = 0

0 = 0

y = 0

x = 2 × 0 - 4

x = 0 - 4

x = -4

User Tomasz Mikus
by
8.4k points

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