2y = x + 4
Divide each side by 2:
y = (1/2)x + 2
The graph is a straight line with a slope of (1/2) and a y-intercept of 2.
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This means that 2y - 3 = 2y + 4 which is not possible.
4y + 4 = 2y + 12Subtract 2y from each side of the equation:2y + 4 = 12Subtract 4 from each side:2y = 8Divide each side by 2:y = 4
if 2y-x=4, than y=1/2*x+2 we can now see that the graph is linear with slope 1/2 and goes through point (0,2)
Infinite, both equations are equivalent and all possible solutions can be represented on the graph y = 4 - x
4y+4 = 2y+12 4y-2y = 12-4 2y = 8 y = 4