3 years ago

Graph each equation. 5y=20x-30

1 answer:

7 0

5y = 20x - 30
5 5
y = 4x - 6
5(4x - 6) = 20x - 30
5(4x) - 5(6) = 20x - 30
20x - 30 = 20x - 30
 +30 +30 
 20x = 20x
 20 20
 x = 1
 5y = 20(1) - 30
 5y = 20 - 30
 5y = -10
 5 5
 y = -2
 5(-2) = 20(1) - 30
 -10 = 20 - 30
 -10 = -10
 (x, y) = (1, -2)

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