The sum of two numbers is 11. Twice the first number minus the second number is 7 Find the numbers.
+73 let's set up two equations, and define two variables. we'll go with x and y again.
here is the system of equations:
x + y = 11
2x - y = 7
again (assuming you are the same Guest who asked a similar question a couple minutes before), i will use elimination.
2x + 2y = 22
2x - y = 7
now, let's subtract these two equations.
3y = 15
y = 5
and again, let's solve for x by plugging in the y value in one of the initial equations.
x + 5 = 11
x = 11 - 5
x = 6
hope this helped! please let me know if you are confused about anything i did :)
+73 let's set up two equations, and define two variables. we'll go with x and y again.
here is the system of equations:
x + y = 11
2x - y = 7
again (assuming you are the same Guest who asked a similar question a couple minutes before), i will use elimination.
2x + 2y = 22
2x - y = 7
now, let's subtract these two equations.
3y = 15
y = 5
and again, let's solve for x by plugging in the y value in one of the initial equations.
x + 5 = 11
x = 11 - 5
x = 6
hope this helped! please let me know if you are confused about anything i did :)
