The parentheses group 3 and 2 together and 6 and 4 together and the square brackets tell us to do all the calculations inside them before multiplying by 4. F G leftfracm_1 m_2 r2 right Notice that to insert the parentheses or brackets the left and right commands are used. 5 2 2 4.
For nested parentheses or brackets solve the innermost parentheses or bracket expressions first and work toward the outermost parentheses.
2 a 2 5 16. Multiply out the brackets and remember that everything inside the brackets will get multiplied by 2. More complicated equations with x on both sides and equations with brackets are also explained. Students learn how to solve linear equations involving brackets and fractions using the balance methodThe start of the lesson is used to recap solving equations involving simple fractions.