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Unformatted text preview: ne Linear Equations Solving Linear Equations Example
3 Solve: 21 − (2x + 17) = −7 − 3x .
Solve: (n − 12) = (n + 8) − 2.
Solve: 7.9 − 2.6w = 1.5w − (9.1 + 2.1w ). Equations in More Than One Variable Outline Linear Equations Equations in More Than One Variable Identities, Conditional Equations, and Contradictions A conditional equation is true for some values of x , but not all
values of x .
An identity is an equation that is true for all values of x .
A contradiction is an equation that is never true for any value
of x ....
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