Can someone please help me with this: 2x + 3y =5 5x - 2y =-16 what is the value of x?
S Shelveen New member Joined Oct 1, 2019 Messages 9 Oct 1, 2019 #1 Can someone please help me with this: 2x + 3y =5 5x - 2y =-16 what is the value of x?
MarkFL Super Moderator Staff member Joined Nov 24, 2012 Messages 3,021 Oct 1, 2019 #2 Hello, and welcome to FMH! Let's multiply the first equation by 2, and the second by 3: [MATH]4x+6y=10[/MATH] [MATH]15x-6y=-48[/MATH] Now add the equations, and \(y\) will be eliminated, and you can solve for \(x\). What do you get?
Hello, and welcome to FMH! Let's multiply the first equation by 2, and the second by 3: [MATH]4x+6y=10[/MATH] [MATH]15x-6y=-48[/MATH] Now add the equations, and \(y\) will be eliminated, and you can solve for \(x\). What do you get?
S Shelveen New member Joined Oct 1, 2019 Messages 9 Oct 1, 2019 #3 Oh wow thanks! i got -2 and it worked!