Practice Evaluating Expressions in Two Variables

Practice Problems

Now that you have mastered evaluating expressions in one variable, let's continue practicing with two or more variables.

Evaluate ‍$$3 + jk + k^3$$ when $$j = 2$$ and ‍$$k = 6$$.
Evaluate ‍$$8r -rs$$ when $$r = 6$$ and ‍$$s = 5$$.
Evaluate ‍$$8 - \frac{m}{n} + p^2$$ when $$m = 8$$, $$n = 2$$, $$p = 7$$.
Evaluate ‍$$ \frac{9}{g} +2h +5$$ when $$g = 3$$ and $$h = 6$$.

Source: Khan Academy, https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:foundation-algebra/x2f8bb11595b61c86:substitute-evaluate-expression/e/evaluating_expressions_2
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