
Solve the following using Substitution method
2x – 5y = -13
3x + 4y = 15


- To solve a pair of equations using substitution, first solve one of the equations for one of the variables. Then substitute the result for that variable in the other equation.

- Choose one of the equations and solve it for x by isolating x on the left-hand side of the equal sign. I'm choosing the 1st equation for now.

- Add 5y to both sides of the equation.


- Multiply
times 5y - 13.

- Substitute
for x in the other equation, 3x + 4y = 15.

- Multiply 3 times
.

- Add
to 4y.

- Add
to both sides of the equation.

- Divide both sides of the equation by 23/2, which is the same as multiplying both sides by the reciprocal of the fraction.

- Substitute 3 for y in
. Because the resulting equation contains only one variable, you can solve for x directly.


- Add
to
by finding a common denominator and adding the numerators. Then reduce the fraction to its lowest terms if possible.

- The system is now solved. The value of x & y will be 1 & 3 respectively.

The correct answer is 2067
It depends on your goals.
typically it's B but it could be D
83 Cents = 2 Quarters, 1 Nickel, 4 Pennies.
Glad I Could Help, And Good Luck!
~AnonymousGiantsFan~
Answer:
60000
Step-by-step explanation:
8572x7= 60004...
Rounded to the nearest 10 (Which I assume you wanted to happen) is: 60000
[If I am wrong I am very sorry, please message me]