Algebra
posted by Scott .
Simplify 1/r=1/x+1/y
Multiply both sides by rxy. Then simplify. I will be happy to check your work.
That is as compact and simple as the relationship can be written. Are you looking for an explicit formula for x, y or r?
Respond to this Question
Similar Questions

math
how do you solve 9x=6 9x=6 Divide both side by 9. (Remember you can add, subtract, multiply, etc but do to both sides what you do to one.) 9x/9 = 6/9 The 9's divide out on the left leaving x. x = 6/9. I will let you reduce the answer. … 
algebra
1 1 7 y  =  2 8 8 please help me! It isn't clear to me what this expression means. Can you clarify it? 
Algebra
Can you explain to me how to solve this equation? 
math
I need help figuring out these two questions on euations with integers. 5x+20=60 2x3=2 thank you so much for first: subtract 20 from both sides, simplify, then divide both sides by 5 for second: add 3 to both sides, simplify, … 
Algebra
Solve S=a/(1r) for r S = a/(1r) Multiply both sides by 1r S*(1r) = [(1r)*a]/(1r) Simplify S*(1r) = a Multiply terms on the left. S  S*r = a Subtract S from both sides. SS*r  S = a  S Simplify S*r = a  S Multiply both sides … 
Algebra
Could someone check this equation for me please.I have added the steps I have done so far. 7x +9 = 5x5 subtract 5x from both sides and simplify 2x+9=5 subtract 9 from both sides 2x=4 divide by 2 x=2 Thought I had done it right but … 
Algebra (check my answers)
Please check these answers. Multiply 7(2a2 4) = 14a2 + 28 Multiply 0.5(a + b 5) = 0.5a + 0.5b  2.5 Factor bx  by + bz = b(x  y + z) Combine like terms (simplify) 12x + 4  11y  6x  9  y = 6x  12y  5 Evaluate the expression … 
Algebra
Can you please check my work? You have helped other students I know. Thank you:) Multiply 7(2a2 4) = 14a2 + 28 Multiply 0.5(a + b 5) = 0.5a + 0.5b  2.5 Factor bx  by + bz = b(x  y + z) Combine like terms (simplify) 12x + 4  
Algebra
Which of the following describes a correct method for solving the equation below? 
Proof by contradiction
Prove that there exists no positive real number such that: 4x^2+1/4x <1 Can I simplify this inequality in the following way: multiply both sides by 4x so we have. 4x^2+1 <4x+1 Which renders the original statement false as 4x^2+1 …