algebra

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Sara and her sister Emily both collect charms for the their charm bracelets. Together they have 42 charms. Emily has 2 more charms than Sara. To figure out the number of charms each girl has, you must first identify the conditions. What are the conditions of the problem?

a) how many charms Emily has; how many charms Sara has
b) together they have 42 charms; Emily has 2 more than Sara
c) together they have 42 charms; how many charms Emily has
d) Emily has 2 more charms than Sara; how many charms Sara has

  • algebra -

    You can make an equation like this.
    Give Sara a variable like x.
    And let Emily be x+2.

    x+(x+2)=42
    2x+2= 42
    -2 -2
    2x= 40

    2x/2 = 40/2
    x=20 (Sara) x+2= 20+2= 22 (Emily)

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