Mathematics 20 Online
OpenStudy (anonymous):

How do you solve this equation using substitution: 3x-y=14 2x+y=16

OpenStudy (anonymous):

the Y values cancel each other out so it becomes 5x=30, 5 divides into 30 6 times.

OpenStudy (anonymous):

using substitution, not elimination

OpenStudy (anonymous):

Or solve one of the equations for y, then plug it in to the other equation.

OpenStudy (anonymous):

Like y=-2x+16, then plug this into the other one: 3x-(-2x=16)=14 Solve for x, then place this the number back into the first equation.

OpenStudy (anonymous):

So 3x+2x-16=14 5x-16=14 x=6

OpenStudy (anonymous):

So x=6 and now place that back into the other equation: 2(6)+y=16 12+y=16 y=4

Latest Questions
L8RVAL: Can anyone solve this problem for me? x + 142 = 16x + 7
10 hours ago 20 Replies 3 Medals
Sprite868: how to change profile pic PLZ HELP!!!!!!
7 hours ago 15 Replies 1 Medal
Sprite868: what is the biggest color that exists?
11 hours ago 7 Replies 1 Medal
DeadlyDiablo: Story Time!! Again, what y'all think?
10 hours ago 2 Replies 1 Medal
DeadlyDiablo: Story Time!!!! What y'all think?
12 hours ago 18 Replies 5 Medals
balencichronicals: https://www.secretmsg.link/secret/6647b7c9a865c/ dont be weird .
14 hours ago 0 Replies 0 Medals
Ash2746: How to deal with a friend who is pregnant?
14 hours ago 27 Replies 3 Medals