# Linear equations

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1. Form each of the following:

? A linear equation in one variable

? A linear equation in two variables

? A quadratic equation

? A polynomial of three terms

? An exponential function

? A logarithmic function

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##### Solution Summary

Linear equations are explained.

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? A linear equation in one variable

A linear equation in one variable is an equation that can be written in the form:

ax + b = 0

where a and b are constants

The following is an example of a linear equation in one variable:

7x - 1 = 6

Solution of a linear equation in one variable is a value, such that, when you replace the variable with it, it makes the equation true (the left side comes out equal to the right side).

Example: Solve x - 10 = -1 for x.

x - 10 ...

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