x + 2y = 9
x + 3y = 13
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Solve for x in the first equation. Subtract 2y from both sides.
x = 9 - 2y
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Plug x into the second equation.
(9 - 2y) + 3y = 13
Combine like terms.
9 + y = 13
Subtract 9 from both sides.
y = 4
____________________________________________________________
Plug y back into the first equation.
x + 2(4) = 9
x + 8 = 9
Subtract 8 from both sides.
x = 1
____________________________________________________________
x = 1
y = 4
Use combine like terms the answer is 7r^2-r-1
Answer:
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Step-by-step explanation:
Answer:
2-x^2+x^3
Step-by-step explanation:
The expression 2-x^2+x^3 can't be simplified further since the terms in the expression are unlike terms.
Hope this helps ;) ❤❤❤
The rent for one movie is $4.50 and rent for one video game is $5.50
Step-by-step explanation:
Let,
Rent for one movie = x
Rent for one video game = y
According to given statement;
12x+2y=65 Eqn 1
3x+5y=41 Eqn 2
Multiplying Eqn 2 by 4
Subtracting Eqn 1 from Eqn 3
Dividing both sides by 18
Putting y=5.50 in Eqn 2
Dividing both sides by 3
The rent for one movie is $4.50 and rent for one video game is $5.50
Keywords: linear equation, elimination method
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