SOLUTION: solve a literal equation for one of the variables: 1. solve for y:2x+3y=9 2. solve for x: 5x+4y+20=0 3. solve the formula for L:P=2L+2W 4. solve the formula for R: E=IR

Algebra.Com
Question 101046: solve a literal equation for one of the variables:
1. solve for y:2x+3y=9
2. solve for x: 5x+4y+20=0
3. solve the formula for L:P=2L+2W
4. solve the formula for R: E=IR
simply expression with rational exponets
5. simplify: (b with neg.2/3 power)neg.6th exponet
6.simplify: square root of 16a to the 4th power

Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
1. solve for y:2x+3y=9
y = (-2/3)x+3
---------------
2. solve for x: 5x+4y+20=0
x = (-4/5)y - 4
---------------
3. solve the formula for L:P=2L+2W
L = (P-2W)/2
--------------------
4. solve the formula for R: E=IR
R = E/I
-----------------
simply expression with rational exponets
5. simplify: (b with neg.2/3 power)neg.6th exponet
b^(-2/3)^(-6) = b^(4)
-------------------------
6.simplify: square root of 16a to the 4th power
sqrt(16a^4) = 4a^2
========================
Cheers,
Stan H.

RELATED QUESTIONS

Solve each literal equation for the indicated variable. 2x + 3y = 6 (solve for... (answered by funmath)
solve the literal equation for y. x + 5y =... (answered by jim_thompson5910,rfer)
Solve each literal equation for the indicated variable 2x + 3y = 6 (for x) Linear... (answered by scianci,checkley75)
Solve each literal equation for the indicated variable: 2x + 3y=6 (for... (answered by jim_thompson5910)
Solve for the literal equation of X. ax/6 =... (answered by drk)
Solve for the literal equation of X. 0.25ax =... (answered by drk)
Solve each literal equation for the indicated variable. 2x +3y = 6 (for x) linear... (answered by katz)
Solve for the literal equation of X. 13(x+2g) - 3(4x+5g) =... (answered by drk)
Solve the literal equation -Ax + By = C for... (answered by unlockmath)