Solving Multiplication and Division Equations By Mrs Muller
Solving Multiplication and Division Equations By, Mrs. Muller
Important Properties to Recall �Division Property of Equality: 4 x 2=8 so 4 x 2/2=8/2 or a=b and c does not equal 0, then a/c=b/c �Multiplication Property of Equality: If 5=5, then 5 x 2=5 x 2 or if a=b, then ax 2=bx 2 �The Identity Property of Multiplication: 1 x 8=8 and 8 x 1=8 or ax 1=a or 1 xa=a
Solving Multiplication Equations �First Lets look at solving equations that involves multiplication. �First recall that the goal is to isolate the variable by using the inverse operation. �The inverse operation would be in this case of multiplication is division. �We would have to divide both sides by the number by the variable in order to isolate the variable. �On the next slide lets look at an example of this to make it easier to understand.
Solving Multiplication Equations � 4 n=68 4 4 1 n= 17 n=17 4 n means that the 4 is being multiplied by the n Isolate the variable. Use the Division Property of Equality Simplify the fractions by dividing (4/4=1 and 68/4=17) or reducing Use the Identity Property of Multiplication
Solving Division Equations �First Lets look at solving equations that involves division. �First recall that the goal is to isolate the variable by using the inverse operation. �The inverse operation would be in this case of division is multiplication. �We would have to multiply both sides by the number that is dividing the variable in order to isolate the variable. �On the next slide lets look at an example of this to make it easier to understand.
Solving Division Equations �d/10=64 d/10 means that d is being divided into 10 sections/groups/ piec 10(d/10)=64(10)Isolate the variable. Use the Multiplication property of E Simplify by multiplying 10 x 1/10=10/10=1 and 64 x 10=640 1 d=640 Use the Identity property of Multiplication d=640
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