handsomeguy48 handsomeguy48

23-03-2021
Mathematics

contestada

SYSTEM OF EQUATIONS

The sum of three times Sophia's age and twice Nick's age is 73. Twice Sophia's age plus four times Nick's age is 86. How old is Sophia?

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satashinakumoto satashinakumoto

23-03-2021

3s+2n=73
2s+4n=86

Multiply top equation by 2 and then subtract second equation

4s=60
Sophia is 15
Nick is 14

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