Multiplication and Division Equations SWBAT solve multiplication equations using the division property of equality; solve division equations using the multiplication property of equality
Related Operations How are addition and subtraction related? –They undo each other, or are inverse operations How are multiplication and division related? –They undo each other, or are inverse operations
Definitions Addition property of equality –When you add the same number to both sides of an equation, you get a true statement Subtraction property of equality –When you subtract the same number to both sides of an equation, you get a true statement Multiplication property of equality –When you multiply the same number to both sides of an equation, you get a true statement Division property of equality –When you divide the same number to both sides of an equation, you get a true statement
Write the following as an equation, using y as your variable. An object on Jupiter weights about 2.6 times its weight on Earth. If a spacecraft weighs 4914 Newtons on Jupiter, what is its weight on Earth? 2.6y = 4914 How can you determine how much it weighs on earth? –Divide to get the variable by itself
Examples 38x = 760 1.7c = 25.5 _b_ = z ÷ 13 = 650 _x_ = 8b =
Try the problems on your paper b = d = 138 d = n = 0.25 n = 2.5 f =