Practice Equations in Math
Use these practice problems to test your method after reviewing the concept explanation and worked examples.
Quick Recap
A mathematical statement that two expressions are equal, connected by an equals sign (=). Equations assert a relationship between quantities and can be solved to find the values of unknown variables that make the statement true.
A balanced scale: both sides must weigh the same. Solve by keeping balance.
Example 1
easyIs x = 4 a solution of 2x - 3 = 5?
Example 2
mediumSolve \frac{x}{4} + 3 = 7.
Example 3
easySolve x + 9 = 15.
Example 4
hardWhich of these is an equation and which is an expression? (a) 3x + 7 (b) 3x + 7 = 19