## Evalute to Solve Equations

### Equations: Learn

An *equation* is a mathematical statement that has two expressions
separated by an equal sign. The expression on the left side of the equal
sign has the same value as the expression on the right side.

One or both of the expressions may contain variables.
*Solving* an equation means manipulating the expressions
and finding the value of the variables.

An example might be: x = 4+8

When the variable is the only part of one of the expressions, simply evaluate the other expression to find the value of the variable.

So in the example above, x = 4+8 = 12, or just x = 12.

Another example might be x = -4*3+1, so x = -12+1 = -11 or just x = -11.

### Equations: Practice

#### Solve for x by evaluting.

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If x = ,

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