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OpenStudy (xochital):
Tony and Belinda have a combined age of 56. Belinda is 8 more than twice Tony’s age. How old is each?
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OpenStudy (anonymous):
first thing i always do with this type of problem is to make a chart
OpenStudy (anonymous):
tony = x
Belinda = 8+2x
making sense so far ?
OpenStudy (xochital):
yes so far it is
OpenStudy (anonymous):
ok so now we know that combined age is 56 so what do you think we do with the two to set up an equation?
OpenStudy (xochital):
t + b = 56
8 + 2t = b
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OpenStudy (anonymous):
to set up an equation
x+8+2x=56
OpenStudy (anonymous):
does that make sense ? because we have a total now combine like terms
OpenStudy (xochital):
oh okay so it would be 8 + 3x = 56 ??
OpenStudy (anonymous):
yes now we want to get the x onto one side
OpenStudy (xochital):
x = 16 right?
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OpenStudy (anonymous):
do u have a solution or what the answer is supposed to be ?
OpenStudy (anonymous):
ok i goofed up so
tony should be = 2x
belinda = 8+2x
OpenStudy (xochital):
so tony's age is 16... so belinda must be 40
OpenStudy (xochital):
ohh okay
OpenStudy (anonymous):
ok sorry i did the addition wrong = you are right my bad :/
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OpenStudy (xochital):
so tony is 16 and belinda is 40?
OpenStudy (anonymous):
yes !!
OpenStudy (xochital):
okay thank you :)
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