Solving Algebraic Equations for a Given Variable
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1. Solve the following formula for R: I = E / R + r
2. Sqrt of 5x - 9 = 4
3. One bag of grass seed will cover an area of 300 square feet. If the width of the area is 5 ft less than the length, determine the dimensions.
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Solution Summary
Algebraic equations are solved for a given variable.
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1. Solve the following formula for R:
I = E / R + r
I - r = E / R
(I-r)R = E
R = E / (I-r)
(Note, requiring R ≠ r)
2. Sqrt of 5x - 9 = 4
SQRT(5x) - 9 = 4
Then SQRT(5x) = 4+9
SQRT(5x) = ...
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