What is the answer to solvefor a,x=(ab)/(a+b) ?

The answer to solvefor a,x=(ab)/(a+b) is a=-(bx)/(x-b);\quad x-b\ne 0

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solvefor a,x=(ab)/(a+b)

solve for

a, x = \frac{ab}{a + b}

a = - \frac{b x}{x - b}; x - b \neq = 0

Solution steps

x = \frac{ab}{a + b}

Multiply both sides by

a + b

x (a + b) = ab

Expand

x (a + b) : a x + b x

a x + b x = ab

Move

b x

to the right side

a x = ab - b x

Move

ab

to the left side

a x - ab = - b x

Factor

a x - ab : a (x - b)

a (x - b) = - b x

Divide both sides by

x - b; x - b \neq = 0

a = - \frac{b x}{x - b}; x - b \neq = 0

r, I = \frac{V}{r + r}

\frac{4 x}{x + 4} + 3 = \frac{2}{x}

4 + \frac{3}{w - 2} = \frac{7}{w - 2}

\frac{x}{( x + 1 )} = 0

2 - (y - 8)^{- 1} = 6 (y - 8)^{- 2}

What is the answer to solvefor a,x=(ab)/(a+b) ?
The answer to solvefor a,x=(ab)/(a+b) is a=-(bx)/(x-b);\quad x-b\ne 0