If you mean y+3 = 2(x-1) then y = 2x-5
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y plus 3 1 2x plus 1 can be graphed by first finding the values of Y and X coordinates.
2x + 3y = 1 y = 1/3 - 2x/3
Both equations are equal and so: 3x+1 = 2x+3 3x-2x = 3-1 x = 2 and by substituting y = 7
If: x+y = 4 and y = 2x+1 Then: 4-x = 2x+1 => 3 = 3x => 1 = x So by substitution: x = 1 and y = 3
x = 3 y = 4 2x + y - 1 = (6) + (4) - 1 = 9