0
Anonymous
I presume you mean given y find x:
Make x the subject:
y = 2x + 3
=> 2x + 3 = y
=> 2x = y - 3
=> x = (y - 3)/2
which can also be expressed as:
x = 0.5 y - 1.5
Wiki User
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(2x + 3)(2x + 3)
2x = x+3 2x-x = 3 x = 3
(0, -3)
2x = 4x + 3 -2x = 3 x = -3 / 2
2x=x+3=x=3