Solving Linear Equations
L .O To be able to use inverse operations to solve algebraic
Equations always include an equals sign so then there are two parts to the
expression. The key to solving equations is balancing out both sides which
usually involves making the algebraic term the subject.
The inverse of addition (+) is subtraction (-)
The inverse of multiplication (X) is division (÷)
Solve the equation 2s + 1 = 29
Step 1: Draw a function diagram starting with the term. Here we start with s.
The diagram outlines which operations are happening and when, this
will come in handy with more complex problems.
Note : you do not +1 then x2 because then you would have 2(s+1) which we
know by expanding is 2s +2 which is incorrect.
Order of operations is very important.
Step 2 : Now go backwards and label the diagram with the inverse operations.
Step 3 : Now using the answer on the right hand side apply the inverse