Jeremy is 5 years younger than his older sister. His older sister is 9 years older than his younger sister. The total of their a ge is 49. Write and solve an equation to find the ages of Jeremy and his sisters. I need help please!
2 answers:
Jeremy=x Older sister=x+5 younger sister=x+5-9 or x-4 x+(x+5)+(x-4)=49 combine like terms 3x+5-4=49 3x+1=49 subtract 1 from both sides 3x=48 divide both sides by 3 x=16 Jeremy=16 Older sister=16+5=21 younger sister =16-4 or 16+5-9=12 J=16 OS=21 YS=12
Jeremy - x Older sister - x+5 Younger sister - x-4 3x+1=49 3x=48 X= 16 Jeremy: 16 Older sister: 21 Younger sister: 12
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