2Remember our goal…When we solve equations we want to isolate the variable to discover its value.We want to find out how much the variable equals.Solution of the Equation: the value of the variable that makes the equation true
3Also, remember our properties of equality… AdditionWhat you add to one side, you must aslo…?MultiplicationIf you multiply one side of the equation by a number, you must…?
4What happens if there is multiplication and addition? Work backwards- the opposite direction of the order of operations.What’s the additive inverse of -10? 10Additive identity!Now, we should multiply both sides by which number? In other words: what is the multiplicative inverse of 2?Now check your work and see if it checks out!!!
5How ‘bout another example? What is the additive inverse of -6?6We get the additive identity!Multiply both sides by 9, why?Now check your work and see if it checks out!!!