This is a quadratic equation requiring the values of x to be found.
Rearrange the equation in the form of:
-3x2-4x+6 = 0
Use the quadratic equation formula to factorise the equation:
(-3x+2.69041576)(x+2.23013857)
Therefore the values of x are 0.8968052533 or - 2.230138587
An even more accurate answer can be found by using surds instead of decimals.
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When (the graph of the equations) the two lines intersect. The equations will tell you what the slopes of the lines are, just look at them. If they are different, then the equations have a unique solution..
The points are: x = 0 and y = -1/10.
0
x = 4 and y = 0
x = -1.2, y = -3