Download Aim #15: How do we solve literal equations? (Unit 2

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Aim #15: How do we solve literal equations?
(Unit 2 - Equations and Inequalities)
9-30-16
HW #15: Complete Classwork Practice
Do Now: Solve each equation.
1) 10 + 3n = 3n - 2
2)
3) 3(5 + 2x) = 6x + 15
3
1
x=8- x
4
2
2)
1
2
HW #14 Solutions: p. 100 #2, 5, 8, 14-21, 25-30
5) no solution
8) infinitely many solutions
14) -2
15)
12
5
16) -2
17) 6
18) 14
19) -5
20) 4
21) 1
25) no solution
26) no solution
27) infinitely many solutions
28) infinitely many solutions
29) -25
30)
-4
3
Solving Literal Equations
A literal equation is an equation involving two or more variables.
Ex. formulas
To transform a literal equation, we solve for one of the variables in
terms of the others.
Ex. #1:
ax + b = c ; for x
Ex. #2:
a(x + b) = c ; for b
Ex. #3:
A=
Ex. #4:
1
bh
2
; for h
x
- a = c ; for x
y
3x + 4 = 22
Unit 2 Quiz on Thursday!
(Aims #12-16)
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