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R.4 solving literal equations
 Literal Equation  
 an equation with two or more different 
variables. 
 Helpful hint: 
 sounds like letteral 
 has multiple letters!
 Solve for the indicated variable, treating 
the others like numbers. 
 Example: 
 A = bh (b)
 P = 2L + 2W (W)
 Solve for the indicated variable: 
 I = Prt (P) 
 A = x + y (x) 
2
 Solve for y. 
2y + 5x = 6
 Solve for x. 
y = 3x - 4
 Solve for y. 
12 = 6x + 3y

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R.4 solving literal equations