Plug in the given values for either x or y and solve for the other.
When x = 7 , y = ?
Plug in 7 for x in the given equation:
y = x - 3
y = 7 - 3
y = 4
When x = 7, y = 4
When x = ? , y = 1
Plug in 1 for y in the given equation:
1 = x - 3
1 (+3) = x - 3 (+3)
x = 1 + 3
x = 4
When x = 4, y = 1
When x = ? , y = 7
Plug in 7 for y in the given equation:
7 = x - 3
7 (+3) = x - 3 (+3)
x = 7 + 3
x = 10
When x = 10, y = 7
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