y = -0.0207x + 12.434
y = -0.0077x + 10.554
These are two linear equations. If you are trying to find where the two lines intersect:
-0.0207x + 12.434 = -0.0077x + 10.554
12.434 - 10.554 = -0.0077x + 0.0207x
1.886 = 0.013x
Solve for x
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If you just want to solve for x for each equation separately:
y = -0.0207x + 12.434
y - 12.434 = -0.0207x
(-y/0.0207) + 600.676 = x
The other one works the same way
