**Recall the following:
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**A linear equation is a polynomial of degree 1.****In order to solve for the unknown variable, you must isolate the variable.****In the order of operations, multiplication and division are completed before addition and subtraction.**LINEAR EQUATION - Solve for

*x*in the following equation.

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Problem 2a: **

**Answer: **

**Solution: ** Subtract 7 from both sides of the equation:

Divide both sides by 2:

Check: Substitute -2 for *x* in the original equation. If the left
side equals the right side after the substitution, your answer is
correct.

**Answer:**

**Solution:** Add 3 to both sides of the equation:

Divide both sides by 3:

Check: Substitute for *x* in the original
equation. If the left side equals the right side after the
substitution, your answer is correct.

**Answer:**

**Solution:** Add 17 to both sides of the equation:

Divide both sides by 5:

Check: Substitute 4 for *x* in the original equation. If the left
side equals the right side after the substitution, your answer is
correct.

**Answer: **

**Solution:** Subtract 5 from both sides of the equation:

Divide both sides by 10:

Check: Substitute for *x* in the
original equation. If the left side equals the right side after the
substitution, your answer is correct.

**Answer:**

**Solution: ** Add to both sides
of the equation:

Divide both sides by 4:

Check: Substitute for *x* in the
original equation. If the left side equals the right side after the
substitution, your answer is correct.

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