Oh Wise Ones,

I have a chart that gave me the equation
below. When I tried to solve for x, I keep getting
unexpected results. What am I doing wrong?

B5=1.1563 inches, B8=.76lbs
D5=.6875 inches, D8=.34lbs
When I solve for y (courtesy algebrahelp.com) I don't get
the correct results. From the cell relationships above if
C5 contains 1.1250 inches, it should yield a lbs result
between .76 and .34. I get: x = 1.066552901

Trend gives me: y = -0.4688x + 1.625


Mike

Simplifying
1.125 = -0.4688x + 1.625

Reorder the terms:
1.125 = 1.625 + -0.4688x

Solving
1.125 = 1.625 + -0.4688x

Solving for variable 'x'.

1.125 + 0.4688x = 1.625 + -0.4688x + 0.4688x

1.125 + 0.4688x = 1.625 + 0.0000
1.125 + 0.4688x = 1.625

1.125 + -1.125 + 0.4688x = 1.625 + -1.125

0.000 + 0.4688x = 1.625 + -1.125
0.4688x = 1.625 + -1.125

1.625 + -1.125 = 0.5
0.4688x = 0.5

x = 1.066552901