2 Remember 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
3 Also, 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…?
4 What 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!!!
5 How ‘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!!!