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Answer:
Jack has 8 jellybeans and his brother has 17 jellybeans
Step-by-step explanation:
Jack+Jack's Brother= total
x+(2x+1)=25
3x+1=25
3x=24
x=8
2*8+1=16+1=17
Jack has 8 jellybeans and his brother has 17 jellybeans.
What is an equation?
"It is a statement which consists of equal symbol between two mathematical expressions."
What is system of equations?
"It is a finite set of equations for which we find a common solution."
For given example,
Let Jack has 'x' jellybeans and his brother has 'y' jellybeans.
Jack split 25 jellybeans between his brother and himself.
⇒ x + y =25 ...........................(1)
his brother has one more jellybean than twice the number Jack has.
⇒ y = 2x + 1 ...........................(2)
So, we get system of equations,
x + y =25
y = 2x + 1
Now, substitute the value of y [from equation (2)] in the equation (1),
⇒ x + (2x + 1) = 25
⇒ 3x + 1 = 25
⇒ 3x = 24
⇒ x = 8
Substitute this value of 'x' in the equation (2),
⇒ y = 2(8) + 1
⇒ y = 17
Therefore Jack has 8 jellybeans and his brother has 17 jellybeans.
Learn more about system of equations here:
brainly.com/question/12895249
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